21,113 results match your criteria Chemosphere[Journal]


Some naturally occurring radionuclides (NORM) in a river affected by acid mining drainages.

Chemosphere 2019 Feb 11;223:536-543. Epub 2019 Feb 11.

Applied Nuclear Physics Group, Universidad de Sevilla, Sevilla, Spain.

The mining activities performed in the Iberian Pyrite Belt (south of Spain) have generated since long-time acid mining drainage (AMD) inputs to the Odiel River and its tributaries. These inputs are continuing nowadays, with origin mostly in the abandoned mines that cover the area, provoking a steady-state situation where the river waters present very low pH and very high concentrations of different heavy metals. In this work, the behavior of several natural radionuclides (Po, Th- and U-isotopes) in water and sediment samples collected in the Odiel River and its tributaries have been analyzed and their levels determined looking for assessing the radiological environmental impact of the AMD. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.059DOI Listing
February 2019

Effects of miR-181a-5p abnormal expression on zebrafish (Danio rerio) vascular development following triclosan exposure.

Chemosphere 2019 Feb 11;223:523-535. Epub 2019 Feb 11.

Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China. Electronic address:

Triclosan (TCS), one of the important bactericides, is widely used in personal care products, and its chronic exposure leads to severe toxic effects on the growth and development of blood vessels in zebrafish (Danio rerio). Herein, we screened out three differentially expressed miRNAs (miR-181a-5p, miR-132-3p and miR-128-3p) by sequencing and qRT-PCR analyses of 4-96-hpf TCS-exposed zebrafish, among which miR-181a-5p was found to regulate many signaling pathways involved in fatty acid biosynthesis and phosphatidylimositol signaling systems. By O-dianisidine staining, TCS-exposure resulted in decreased distribution of red blood cells and induced blood hypercoagulable state and thrombotic effects. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.038DOI Listing
February 2019

Dose-dependent effects of a glyphosate commercial formulation - Roundup UltraMax - on the early zebrafish embryogenesis.

Chemosphere 2019 Feb 12;223:514-522. Epub 2019 Feb 12.

Department of Biology and Environment, School of Life and Environmental Sciences, University of Trás-os Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Animal Science, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. Electronic address:

The use of herbicides with glyphosate as an active ingredient, the so-called glyphosate-based herbicides (GBH), has increased dramatically in recent years currently being the most widely used in the world. Therefore, glyphosate residues have been detected in water and soils near the application sites. Recent studies indicate that GBH may cause adverse effects on vertebrates although these have been attributed to the presence of adjuvants in the commercial formulations rather than to the sole compound. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.071DOI Listing
February 2019

The structure-activity relationship (SAR) for phthalate-mediated developmental and reproductive toxicity in males.

Chemosphere 2019 Feb 15;223:504-513. Epub 2019 Feb 15.

Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. Electronic address:

Testicular dysgenesis syndrome includes the hypospadias, cryptorchidism and abnormal fetal testis in male neonate. This is possibly caused by the environmental phthalates, which down-regulate the expression of androgen synthetic genes and Insl3 or directly inhibits steroidogenic enzymes. There are distinct structure-activity relationships (SARs) for phthalate-mediated developmental and reproductive toxicity. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193031
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http://dx.doi.org/10.1016/j.chemosphere.2019.02.090DOI Listing
February 2019
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Comparison of inert and non-inert cathode in cathode/Fe/Peroxymonosulfate processes on iohexol degradation.

Chemosphere 2019 Feb 14;223:494-503. Epub 2019 Feb 14.

School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan 430074, PR China. Electronic address:

To investigate the effect of cathode materials on organics degradation in a cathode/Fe/PMS process, different cathode materials (platinum, copper and iron) were selected and their performances were compared with iohexol as target organics. The optimal conditions were found to be different for different cathode/Fe/PMS processes. With a relatively high cathodic current input (2. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.079DOI Listing
February 2019

Human and environmental exposure to PCDD/Fs and dioxin-like PCBs in Africa: A review.

Chemosphere 2019 Feb 13;223:483-493. Epub 2019 Feb 13.

Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda.

This paper reviews literature for the last two decades with emphasis on levels, toxic equivalencies and sources of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in Africa. Further, we comprehensively analysed data, interpret differences and identify existing gaps with those from other continents. We observed that high levels of PCDD/Fs and dl-PCBs were reported in environmental and biological samples near densely populated urban and industrialised areas compared to those in rural settings. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193028
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http://dx.doi.org/10.1016/j.chemosphere.2019.02.065DOI Listing
February 2019
4 Reads

Impacts of exhaled aerosol from the usage of the tobacco heating system to indoor air quality: A chamber study.

Chemosphere 2019 Feb 15;223:474-482. Epub 2019 Feb 15.

Department of Environmental Technology, Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, Kaunas, LT50254, Lithuania. Electronic address:

Aerosol particle, carbonyl, and nicotine concentrations were analysed as pollutants affecting indoor air quality during the usage of electrically-heated tobacco product - the Tobacco Heating System (THS). Quantitative experimental variables included THS use intensity as number of parallel users (1, 3, or 5), distance to the bystander (0.5, 1, or 2 m), as well as environmental conditions in a chamber: ventilation intensity as air changes per hour (0. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.095DOI Listing
February 2019

Multifunctional magnetic sphere-MoS@Au hybrid for surface-enhanced Raman scattering detection and visible light photo-Fenton degradation of aromatic dyes.

Chemosphere 2019 Feb 14;223:465-473. Epub 2019 Feb 14.

College of Chemistry and Chemical Engineering, Jiangxi Normal University, China. Electronic address:

A ternary hybrid, MNPs-MoS@Au, composed of gold nanoparticles (AuNPs) grown on a magnetic sphere (MNPs)-MoS microflower composite (MNPs-MoS) was proposed for surface-enhanced Raman scattering (SERS) detection and visible-light photo-Fenton degradation of aromatic dyes. The hybrid was prepared by sequential solvothermal growth of MNPs and MoS, and electroless deposition of AuNPs. A comparison of results revealed that the synergy among these components endowed the hybrid with a much higher SERS enhancement ability than MNPs, or MNPs@MoS. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.073DOI Listing
February 2019

Simultaneous bioprecipitation of cadmium to cadmium sulfide nanoparticles and nitrogen fixation by Rhodopseudomonas palustris TN110.

Chemosphere 2019 Feb 13;223:455-464. Epub 2019 Feb 13.

Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154, USA. Electronic address:

This study investigated the abilities of a purple non-sulfur bacterium, Rhodopseudomonas palustris TN110 to bioremediate cadmium through the biosynthesis of CdS nanoparticles and to fix nitrogen simultaneously. Under microaerobic-light conditions, R. palustris TN110 synthesized CdS nanoparticles. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.051DOI Listing
February 2019

Reducing arsenic in rice grains by leonardite and arsenic-resistant endophytic bacteria.

Chemosphere 2019 Feb 11;223:448-454. Epub 2019 Feb 11.

Division of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand.

Arsenic contaminated in rice plants can cause many physiological, biochemical and productivity in rice. This also had a negative impact on human health. To decrease arsenic in grains, a combination of leonardite as amendment and arsenic-resistance endophytic bacteria was investigated. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.054DOI Listing
February 2019

The detection of drugs of abuse and pharmaceuticals in drinking water using solid-phase extraction and liquid chromatography-mass spectrometry.

Chemosphere 2019 Feb 14;223:438-447. Epub 2019 Feb 14.

Forensic and Investigative Sciences Research Group, Department of Biomedical and Forensic Sciences, Faculty of Science and Technology, Anglia Ruskin University, Cambridge, CB1 1PT, United Kingdom. Electronic address:

Pharmaceuticals and drugs of abuse including novel psychoactive substances (NPS) are emerging as newer contaminants in the aquatic environment. The presence of such pollutants has implications on the environment as well as public health and therefore their identification is important when monitoring water quality. This research presents a new method for the simultaneous detection of 20 drugs of abuse and pharmaceuticals in drinking water, including 15 NPS, three traditional illicit drugs and two antidepressants. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.040DOI Listing
February 2019

Assessment of biomass ash applications in soil and cement mortars.

Chemosphere 2019 Feb 11;223:425-437. Epub 2019 Feb 11.

Wageningen University and Research, Department of Soil Quality, P.O. Box 47, 6700 AA, Wageningen, the Netherlands; TNO Geological Survey of the Netherlands, P.O. Box 80015, Utrecht, the Netherlands. Electronic address:

The pH-dependent availability and leaching of major and trace elements was investigated for a wide range of biomass ash from different fuels and conversion technologies. A technical and environmental assessment of selected biomass ash for application in soil or cement mortars was performed, using both the total content and leaching of elements. A large variation in biomass ash composition, yet consistent pH dependent leaching patterns were observed for most elements and conversion technologies. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.045DOI Listing
February 2019

Degradation of aniline in aqueous solution by dielectric barrier discharge plasma: Mechanism and degradation pathways.

Chemosphere 2019 Feb 16;223:416-424. Epub 2019 Feb 16.

Central and Southern China Municipal Engineering Design & Research Institute Co. Ltd., Wuhan, 430010, China.

The degradation of aniline solution using the dielectric barrier discharge (DBD) plasma was studied in this paper. The results indicated that the initial concentration of aniline, applied voltage and initial pH value affected the removal efficiency of aniline significantly. After 12 min with DBD plasma treatment, 90. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.029DOI Listing
February 2019

Biochar alleviates fluoride toxicity and oxidative stress in safflower (Carthamus tinctorius L.) seedlings.

Chemosphere 2019 Feb 14;223:406-415. Epub 2019 Feb 14.

Department of Plant Eco-physiology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran. Electronic address:

An original research was laid out as factorial to evaluate the possible effects of biochar (0, 25 and 50 g kg soil) on mitigating fluoride toxicity (non-contamination, 100, 200, 400 and 800 mg NaF kg soil) in safflower seedlings. Increasing fluoride toxicity up to 200 mg NaF kg soil did not decrease the safflower growth. However, the growth of plants under 400 and 800 mg NaF kg was reduced by enhancing soluble fluoride concentration in the soil. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.087DOI Listing
February 2019

Identifying sulfur species adsorbed on particulate matters in exhaust gas emitted from various vessels.

Chemosphere 2019 Feb 16;223:399-405. Epub 2019 Feb 16.

Graduate School of Biosphere Science, Hiroshima University, 1-7-1 Kagamiyama, Higashi-Hiroshima, 739-8521, Japan.

Ship fuels are highly associated with the emission of particulate matter and sulfur. Sulfur adsorbed on particulate matter in exhaust gases from fuels is generally considered to be sulfate. However, other chemical species of sulfur adsorbed on particulate matter in ship exhaust gases are not well known. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.096DOI Listing
February 2019

Direct filtration for the treatment of the coagulated domestic sewage using flat-sheet ceramic membranes.

Chemosphere 2019 Feb 11;223:383-390. Epub 2019 Feb 11.

Environmental Engineering Research Centre, Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China; Shenzhen Engineering Research Laboratory for Sludge and Food Waste Treatment and Resource Recovery, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China; Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China. Electronic address:

Direct membrane filtration (DMF) is considered as a promising technology for municipal wastewater treatment. We utilized an innovative application of flat-sheet ceramic membranes (FSCM) for DMF for the rapid treatment of domestic sewage. Coagulation was applied before FSCM filtration to increase the pollutant removal and to mitigate membrane fouling. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.055DOI Listing
February 2019

Effective stabilization and distribution of emulsified nanoscale zero-valent iron by xanthan for enhanced nitrobenzene removal.

Chemosphere 2019 Feb 15;223:375-382. Epub 2019 Feb 15.

Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China. Electronic address:

The reactivity and delivery of remediants and treatment of organic contaminants in heterogeneous aquifer are particularly challenging issues for injection-based remedial treatments. Our objective was to enhance the reactivity and delivery of nanoscale zero-valent iron (nZVI) and improve the sweeping efficiency of nZVI into low permeable zones (LPZs) to reduce nitrobenzene (NB). This was accomplished by conducting batch and transport experiments that quantified NB degradation by different modified nZVI and the ability of emulsified nZVI (EZVI) or xanthan carried EZVI (XG-EZVI) to penetrate and cover a lens. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.099DOI Listing
February 2019

Effect of oxygen supply strategy on nitrogen removal of biochar-based vertical subsurface flow constructed wetland: Intermittent aeration and tidal flow.

Chemosphere 2019 Feb 14;223:366-374. Epub 2019 Feb 14.

School of Environment, Tsinghua University, 100084, Beijing, China.

Insufficient dissolved oxygen (DO) concentration is recognized as one of the major factors limiting efficient nitrogen removal in constructed wetlands (CWs). This study investigated four biochar-based vertical subsurface flow constructed wetlands (VSFCWs) (system I: intermittent aeration without biochar addition; system II: intermittent aeration with biochar addition; system III: tidal flow without biochar addition; system IV: tidal flow with biochar addition) to compare the effect of oxygen supply strategies on the performance and mechanism of nitrogen removal. The results showed that NHN removal efficiencies were 85. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.082DOI Listing
February 2019

Distribution characteristics of poly-brominated diphenyl ethers between water and dissolved organic carbon from anaerobic digestate: Effects of digestion conditions.

Chemosphere 2019 Feb 13;223:358-365. Epub 2019 Feb 13.

Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.

It is becoming increasingly urgent to investigate the partition coefficients (expressed as log K values) of polybrominated diphenyl ethers (PBDEs) in dissolved organic carbon (DOC) present in wastewater. In the current study, after 72 h of equilibration, the concentrations of four common PBDEs were measured in the presence of four DOC solutions from two laboratories and two full-scale anaerobic digestion plants. Sixteen log Ks were determined by calculation and unit conversion. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.076DOI Listing
February 2019

Bacterial-facilitated uranium transport in the presence of phytate at Savannah River Site.

Chemosphere 2019 Feb 13;223:351-357. Epub 2019 Feb 13.

Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Tallahassee, FL, 32310, United States. Electronic address:

At the Department of Energy (DOE) managed Savannah River Site (SRS), uranium and other heavy metals continue to pose threats to the ecosystem health and processes. In the oxic soil of this site, uranium is present primarily as soluble salts of the uranyl ion (i.e. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.064DOI Listing
February 2019

Trace metals in green sea turtles (Chelonia mydas) inhabiting two southern California coastal estuaries.

Chemosphere 2019 Feb 8;223:342-350. Epub 2019 Feb 8.

Department of Biological Sciences, California State University, Long Beach, USA.

Foraging aggregations of east Pacific green sea turtles (Chelonia mydas) inhabit the Seal Beach National Wildlife Refuge (SBNWR) and San Diego Bay (SDB), two habitats in southern California, USA, located near urbanized areas. Both juvenile and adult green turtles forage in these areas and exhibit high site fidelity, which potentially exposes green turtles to anthropogenic contaminants. We assessed 21 trace metals (TM) bioaccumulated in green turtle scute and red blood cell (RBC) samples collected from SBNWR (n = 16 turtles) and SDB (n = 20 turtles) using acid digestion and inductively coupled plasma mass spectrometry. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.01.107DOI Listing
February 2019

Enhanced recovery of aluminum from wastewater using a fluidized bed homogeneously dispersed granular reactor.

Chemosphere 2019 Feb 14;223:330-341. Epub 2019 Feb 14.

Department of Environmental Resources Management, Chia Nan University of Pharmacy and Sciences, Tainan, Taiwan. Electronic address:

The recovery of aluminum from wastewater is one of the main environmental issues that need to be addressed in the aluminum finishing industry. A new technique of converting a soft slurry into hard granules using the homogeneous granulation process in the fluidized-bed reactor (FBR) can respond to this problem. It is a better method of remediation than producing a slurry containing 70% water. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.086DOI Listing
February 2019

Distribution and release of phosphorus fractions associated with soil aggregate structure in restored wetlands.

Chemosphere 2019 Feb 11;223:319-329. Epub 2019 Feb 11.

Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China; University of Chinese Academy of Sciences, Beijing, 101408, China.

Phosphorus, a dominating element responsible for eutrophication, is a potential limiting nutrient in wetland ecosystem. In this study, the release risk of phosphorus was evaluated by investigating the distribution of phosphorus fractions in different grain-sizes of soil aggregates in wetlands with restoration durations of 1, 2, 3, 5, 13 or 19 years. The results showed that the soil aggregate structure tended to be stable when paddy fields were changed into wetland, though aggregate structure first condensed fine-aggregates (<0. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.046DOI Listing
February 2019

Structure, dissolution, and plant uptake of ferrous/zinc phosphates.

Chemosphere 2019 Feb 12;223:310-318. Epub 2019 Feb 12.

National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Klong Luang, Pathum Thani, 12120, Thailand; AFRS(T), The Royal Society of Thailand, Sanam Sueapa, Dusit, Bangkok, 10300, Thailand. Electronic address:

Development of slow release fertilizers by tuning dissolution kinetics can reduce the environmental impact of (micro) nutrients added to crops. Mixed metal compounds may have different dissolution kinetics and plant uptake than single metal compounds. In this study, mixed Fe(II)/Zn(II) phosphates (0-100 at% Zn) were prepared by aqueous precipitation and their structural characteristics and dissolution kinetics in a sand column were measured as model for divalent metal and phosphate release in soil. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.024DOI Listing
February 2019

Application of common duckweed (Lemna minor) in phytoremediation of chemicals in the environment: State and future perspective.

Chemosphere 2019 Feb 7;223:285-309. Epub 2019 Feb 7.

Department of Plant Science & Biotechnology, Faculty of Science, University of Port Harcourt, Choba, Rivers State, Nigeria.

Over the past 50 years, different strategies have been developed for the remediation of polluted air, land and water. Driven by public opinion and regulatory bottlenecks, ecological based strategies are preferable than conventional methods in the treatments of chemical effluents. Ecological systems with the application of microbes, fungi, earthworms, plants, enzymes, electrode and nanoparticles have been applied to varying degrees in different media for the remediation of various categories of pollutants. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.025DOI Listing
February 2019

High-throughput analysis of photocatalytic reactivity of differing TiO formulations using 96-well microplate reactors.

Chemosphere 2019 Feb 8;223:275-284. Epub 2019 Feb 8.

School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, USA.

The rapid development of photocatalysts for water decontamination benefits from availability of sensitive platforms for screening photocatalytic reactivity. The standard approach typically involves quantifying the degradation of a single dye compound in a slurry system in individual beakers, which requires tedious photocatalyst separation and long operation time. We present a simple and efficient method for assessing the photocatalytic activity of different photocatalyst nanomaterials that eliminates the solid separation process. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.016DOI Listing
February 2019

Complex to simple: In vitro exposure of particulate matter simulated at the air-liquid interface discloses the health impacts of major air pollutants.

Chemosphere 2019 Feb 7;223:263-274. Epub 2019 Feb 7.

CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques, National Center for Nanoscience & Technology of China, Beijing, China; College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China. Electronic address:

Particulate matter (PM) exposure poses many adverse effects on human health. However, it is challenging to clearly differentiate between the contributions of individual pollutants on toxicity from complex mixtures of ambient air pollutants. The aim of this study is to generate aerosols constituted by silica nanoparticles (NPs) and bisulfate to serve as simulators of particle-associated high-sulfur air pollution. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.022DOI Listing
February 2019

Life-time exposure to waterborne copper II: Patterns of tissue accumulation and gene expression of the metal-transport proteins ctr1 and atp7b in the killifish Poecilia vivipara.

Chemosphere 2019 Feb 14;223:257-262. Epub 2019 Feb 14.

Programa de Pós-graduação em Ciências Fisiológicas, Universidade Federal do Rio Grande, Avenida Itália km 8, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil; Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Avenida Itália km 8, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil. Electronic address:

The involvement of transporting proteins on copper (Cu) bioaccumulation was evaluated in the killifish Poecilia vivipara chronically exposed to environmentally relevant concentrations of waterborne Cu. Fish (<24 h-old) were maintained under control condition or exposed to different waterborne Cu concentrations (5, 9 and 20 μg/L) for 28 and 345 days in saltwater. Following exposure periods, Cu accumulation and the expression of genes encoding for the high affinity Cu-transporter (ctr1) and the P-type Cu-ATPase (atp7b) were evaluated. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.083DOI Listing
February 2019

Fractionation and identification of iron-phosphorus compounds in sewage sludge.

Chemosphere 2019 Feb 12;223:250-256. Epub 2019 Feb 12.

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China. Electronic address:

Iron (Fe) salts are widely used to remove phosphorus (P) in wastewater treatment plants (WWTPs). Understanding the existing species of iron-phosphorus compounds (FePs) in sludge is conducive to P recovery. In this study, the chemical equilibrium modeling software, sequential chemical extraction methods and instrumental analytical techniques were used to establish a reliable method for fractionation and identification of FePs in sewage sludge. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00456535193026
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http://dx.doi.org/10.1016/j.chemosphere.2019.02.052DOI Listing
February 2019
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Assessment of bacterial communities in Cu-contaminated soil immobilized by a one-time application of micro-/nano-hydroxyapatite and phytoremediation for 3 years.

Chemosphere 2019 Feb 11;223:240-249. Epub 2019 Feb 11.

Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Science, Nanjing, 210008, China; National Engineering and Technology Research Center for Red Soil Improvement, Red Soil Ecological Experiment Station, Chinese Academy of Sciences, Liujiazhan Plantation, Yingtan, 335211, China; Jiangxi Engineering Research Center of Eco-Remediation of Heavy Metal Pollution, Jiangxi Academy of Science, Nanchang, 330096, China. Electronic address:

Heavy metals contamination of soil has been considered as a global environmental problem, and consequently various soil amendments have been widely used in immobilization. Previous studies have reported that micro-/nano-hydroxyapatite (MHA/NHA) as a novel chemical material could alleviate soil acidity and reduce the bioavailability of heavy metals. However, the mechanism of soil microorganism responding to the application of MHA/NHA is little studied. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.049DOI Listing
February 2019

Evidence for the widespread occurrence of short- and medium-chain chlorinated paraffins in fish collected from the Rhône River basin (France).

Chemosphere 2019 Feb 13;223:232-239. Epub 2019 Feb 13.

CNRS, University of Bordeaux, EPOC, UMR 5805, F-33400, Talence, France.

Chlorinated paraffins (CPs) are high-volume chemicals used in numerous industrial applications. Their quantitative analysis is extremely challenging and this work presents the optimization of an analytical method based on gas chromatography hyphenated with electron capture negative ionization time-of-flight high-resolution mass spectrometry (GC-ECNI-TOF HRMS) for the simultaneous determination of short-chain and medium-chain CPs (SCCPs and MCCPs, respectively) in fish tissues (i.e. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.069DOI Listing
February 2019

Combination of soil organic and inorganic amendments helps plants overcome trace element induced oxidative stress and allows phytostabilisation.

Chemosphere 2019 Feb 13;223:223-231. Epub 2019 Feb 13.

Department of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Spain.

Trace element (TE)-contaminated soils require the improvement of their physico-chemical properties in order to allow their restoration through phytostabilization technologies. This study aimed to determine the usefulness of oxidative stress related parameters to validate the suitability of two different combinations of organic (solid fraction of pig slurry) and inorganic (paper mill sludge or a commercial red mud derivative) amendments for the phytostabilization of an acidic (4.2) TE-contaminated mine soil from SE Spain. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.056DOI Listing
February 2019

Heavy metal contamination assessment of surface sediments of the Subei Shoal, China: Spatial distribution, source apportionment and ecological risk.

Chemosphere 2019 Feb 13;223:211-222. Epub 2019 Feb 13.

Department of Marine Technology, School of Marine and Biological Engineering, Yancheng Institute of Technology, Yancheng, 224051, Province Jiangsu, China. Electronic address:

This study investigated heavy metals (Ni, Zn, Cr, Cu, As, Pb, Cd and Hg) concentrations in surface sediment of Subei Shoal, China, to illustrate their spatial distribution characteristics, sources and potential ecological risk of pollution. Contents of total organic carbon (TOC), clay, silt and sand were 1.7 ± 0. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.058DOI Listing
February 2019

Removal of active dyes by ultrafiltration membrane pre-deposited with a PSFM coagulant: Performance and mechanism.

Chemosphere 2019 Feb 11;223:204-210. Epub 2019 Feb 11.

School of Environmental Science and Engineering, University of South Australia, 2280, Australia.

A new, environmental friendly, polysilicate ferric manganese (PSFM) coagulant, composed of Fe, Mn and Si, was designed and developed. As part of the process, the PSFM flocs were then deposited onto an ultrafiltration (UF) membrane to increase the removal of active dyes and its antifouling properties in the presence of the active dye was tested. Influencing factors, such as dosage of coagulant and solution pH, were systematically investigated and included as the process optimization. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.034DOI Listing
February 2019

Activation of peroxydisulfate by nanoscale zero-valent iron for sulfamethoxazole removal in agricultural soil: Effect, mechanism and ecotoxicity.

Chemosphere 2019 Feb 13;223:196-203. Epub 2019 Feb 13.

State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.

In this study, peroxydisulfate (PDS) was successfully activated by nanoscale zero-valent iron (nZVI) for the degradation of sulfamethoxazole (SMX, antibiotic frequently detected in the environment) in agricultural soils. The results indicated that the degradation of SMX was affected by the nZVI dose, the ratio of SMX/PDS, the ratio of soil/water and reaction temperature, and in cinnamon soils 87.6% of SMX degradation can be achieved within 4 h at 30 °C when the initial nZVI dose was 0. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.074DOI Listing
February 2019

Mechanochemical degradation of PCDD/Fs in fly ash within different milling systems.

Chemosphere 2019 Feb 13;223:188-195. Epub 2019 Feb 13.

State Key Laboratory for Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, China.

Two distinct mechanochemical degradation (MCD) methods are adopted to eliminate the polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs) from fly ash in municipal solid waste incinerators. First, experiments are conducted in a planetary ball mill for selecting suitable additives, and an additive system of SiO-Al is chosen for its high-efficiency, low-price, and good practicability. The I-TEQ value of PCDD/Fs in washed fly ash decreases dramatically from 6. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.066DOI Listing
February 2019

Fate of a perfluoroalkyl acid mixture in an agricultural soil studied in lysimeters.

Chemosphere 2019 Feb 5;223:180-187. Epub 2019 Feb 5.

Universiteit van Amsterdam, Institute for Biodiversity and Ecosystem Dynamics, Science Park 904, 1098XH Amsterdam, the Netherlands; KWR Watercycle Research Institute, Nieuwegein, the Netherlands.

Perfluoroalkyl acids (PFAAs) are environmental contaminants of concern in both food and drinking water. PFAA fate in agricultural soil is an important determinant of PFAA contamination of groundwater and crops. The fate of C4-C14 perfluorinated carboxylic acids (PFCAs) and two perfluorinated sulfonic acids (PFSAs) in an agricultural soil was studied in a field lysimeter experiment. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.012DOI Listing
February 2019

Naturally occurring radioactive material and risk assessment of tailings of polymetallic and Ra/U mines from legacy sites.

Chemosphere 2019 Feb 11;223:171-179. Epub 2019 Feb 11.

Empresa de Desenvolvimento Mineiro, SA. (EDM), Rua Sampaio e Pina, nº 1, 7º, 1070-248, Lisboa, Portugal. Electronic address:

Old mine tailings from Northern and Central Portugal were studied in order to perform a radiological and chemical characterization. The evaluation of massic activity of natural radionuclides and concentrations in tailings of polymetallic and Ra/U mines was performed by gamma spectrometry and neutron activation analysis. Iron speciation was carried out by Mössbauer spectroscopy. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.057DOI Listing
February 2019

Polychlorinated diphenyl sulfides can induce ROS and genotoxicity via the AhR-CYP1A1 pathway.

Chemosphere 2019 Feb 1;223:165-170. Epub 2019 Feb 1.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China.

Polychlorinated diphenyl sulfides (PCDPSs) are a group of chemicals that can interact and activate the aryl hydrocarbon receptor (AhR). Previous studies have shown that PCDPSs can cause oxidative stress in livers. However, information on genotoxicity of PCDPSs is limited. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.01.169DOI Listing
February 2019

Co-exposure of graphene oxide with trace elements: Effects on acute ecotoxicity and routine metabolism in Palaemon pandaliformis (shrimp).

Chemosphere 2019 Feb 12;223:157-164. Epub 2019 Feb 12.

Instituto de Pesca - APTA- Secretaria da Agricultura e Abastecimento do Governo do Estado de São Paulo, Cananéia, São Paulo, Brazil. Electronic address:

Graphene oxide (GO) has been evaluated for application in environmental remediation and pollution control strategies. However, the side effects caused by the interactions of GO with classical pollutants in aquatic environments are still largely unknown. In this work, the ecotoxicological effects of GO, cadmium, zinc and the interactions between GO and these trace elements (co-exposure) were evaluated through acute toxicity tests and routine metabolism (i. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.017DOI Listing
February 2019

Potential effects of suspended TiO nanoparticles on activated sludge floc properties in membrane bioreactors.

Chemosphere 2019 Feb 11;223:148-156. Epub 2019 Feb 11.

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China. Electronic address:

With the rapid development and application of consumer products containing nanoparticles (NPs), especially titanium dioxide (TiO) NPs, the potential effects of suspended NPs on wastewater treatment has been a concern over the recent years. This study investigated the potential effects of suspended TiO NPs on activated sludge flocculation properties in a membrane bioreactor (MBR). Results showed that suspended TiO NPs inhibited the viability of activated sludge flocs, and led to bacterial protein secretion for bacterial protection, causing an overall protein increase of soluble microbial products. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.042DOI Listing
February 2019

Biodegradation potential of polycyclic aromatic hydrocarbons by immobilized Klebsiella sp. in soil washing effluent.

Chemosphere 2019 Feb 1;223:140-147. Epub 2019 Feb 1.

Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; National Centre for International Research of Low-carbon and Green Buildings, Chongqing University, Chongqing, 400045, China. Electronic address:

A strain KL (Klebsiella sp.), with a high polycyclic aromatic hydrocarbons (PAHs) degradation efficiency, was isolated and purified. Immobilization of strain KL using a boric acid-CaCl cross-linking method based on polyvinyl alcohol (PVA)-sodium alginate (SA)-nano alumina (ALNPs) composite was investigated for removal of phenanthrene (PHE), fluoranthene (FLA), and pyrene (PYR) in soil washing effluent. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.01.196DOI Listing
February 2019

Hydrogen generation and simultaneous removal of Cr(VI) by hydrolysis of NaBH using Fe-Al-Si composite as accelerator.

Chemosphere 2019 Feb 11;223:131-139. Epub 2019 Feb 11.

Heilongjiang Tobacco Industry Limited Company, Harbin, 150001, China.

The present study reports a novel method for hydrogen generation and simultaneous removal of Cr(VI) from synthetic wastewater using NaBH as the reducing agent and Fe-Al-Si composite as accelerator. The results showed that the hydrogen generation yields of NaBH occurred at low pH, high temperature and stirring speed. The presence of Cr(VI) was found to inhibit hydrogen generation at the initial pH 3. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.050DOI Listing
February 2019

Fish exposed to water contaminated with eprinomectin show inhibition of the activities of AChE and Na/K-ATPase in the brain, and changes in natural behavior.

Chemosphere 2019 Feb 7;223:124-130. Epub 2019 Feb 7.

Graduate Program of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil; Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Chapecó, SC, Brazil. Electronic address:

The objective of this study was to evaluate whether antiparasitic eprinomectin may be an environmental contaminant in water compartment in low concentrations, negatively affecting neurotransmission and, consequently, the natural behavior of the jundiá (Rhamdia quelen). Fish were allocated in tanks and exposed for 24 and 48 h to eprinomectin concentrations in water [0.0 (Control), 1. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.026DOI Listing
February 2019

Immobilisation of high-arsenic-containing tailings by using metallurgical slag-cementing materials.

Chemosphere 2019 Feb 8;223:117-123. Epub 2019 Feb 8.

School of Civil and Resource Engineering, University of Science and Technology Beijing, 100083, China; Key Laboratory of High-efficient Mining and Safety of Metal Mines, Ministry of Education, Beijing 100083, China; Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing, 100083, China. Electronic address:

The mixture of finely ground blast furnace slag (BFS), basic oxygen furnace (BOF) steel slag (SS), and flue gas desulfurisation (FGD) gypsum could be used as cement to solidify heavy metals. In this study, these cementitious materials were combined with high-arsenic-containing tailings to form cemented backfill material (CBM). The results indicated that the optimal design of CBM was that of specimen CBM2 which showed good early strength (10. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.030DOI Listing
February 2019

Seasonal mobility of antimony in sediment-water systems in algae- and macrophyte-dominated zones of Lake Taihu (China).

Chemosphere 2019 Feb 5;223:108-116. Epub 2019 Feb 5.

International Network for Environment and Health, School of Geography and Archaeology & Ryan Institute, National University of Ireland, Galway, Ireland.

Differences in trophic status can lead to different water quality and sediment geochemistry characteristics, influencing antimony (Sb) mobility in sediments and its release into the water column. In this study, seasonal sampling was conducted in algal- and macrophyte-dominated zones of Lake Taihu, China. High-resolution dialysis (HR-Peeper) and diffusive gradients in thin films (DGT) techniques were used to measure soluble Sb and DGT-labile Sb in the sediment-water profiles at a 4 mm vertical resolution. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.013DOI Listing
February 2019

Concentrations of brominated and phosphorous flame retardants in Finnish house dust and insights into children's exposure.

Chemosphere 2019 Feb 8;223:99-107. Epub 2019 Feb 8.

Norwegian Institute of Public Health, Department of Environmental Exposure and Epidemiology, P.O. Box 4404, Nydalen, 0403, Oslo, Norway.

Brominated and phosphorous flame retardants (BFRs, PFRs) are added to household and consumer products to reduce their flammability. Some FRs are persistent in the environment and may have adverse health effects. As exposure indoors contributes significantly to total exposure, we wanted to estimate the exposure of children (3 years of age) through dust ingestion, inhalation, and dermal absorption. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.027DOI Listing
February 2019

Continuous monitoring for leaching of calcium sulfoaluminate cement pastes incorporated with ZnCl under the attacks of chloride and sulfate.

Chemosphere 2019 Feb 11;223:91-98. Epub 2019 Feb 11.

Department of Civil and Environment Engineering, The Hong Kong University of Science and Technology, Kowloon, Clear Water Bay, Hong Kong; Division of Structural Engineering, Department of Civil and Environmental Engineering, Chalmers University of Technology, Gothenburg, Sweden. Electronic address:

Ionic zinc is considered as an environmental pollutant. This work systematically investigated leaching mechanisms of calcium sulfoaluminate cement (CSA) pastes incorporated with/without ZnCl under the attacks of chloride and/or sulfate. The leaching behaviors of CSA pastes in the leaching solution are in-situ and continuously monitored by innovative non-contact electrical impedance measurement (NCEIM) and pH meter. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.047DOI Listing
February 2019

Temporal pattern in levels of the neonicotinoid insecticide, imidacloprid, in an urban stream.

Chemosphere 2019 Feb 2;223:83-90. Epub 2019 Feb 2.

School of Public Health, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA.

Imidacloprid is a widely used insecticide with high runoff potential posing a significant threat to aquatic ecosystems. In order to determine the spatial and temporal concentrations of imidacloprid in Forester Creek, a tributary to the San Diego River, surface water samples were collected from two sites under wet-weather and dry-weather conditions. Solid phase extraction and liquid chromatography tandem mass spectrometry were utilized to quantify imidacloprid levels in all samples. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.01.165DOI Listing
February 2019

Alterations in fingerprints of polychlorinated biphenyls in benthic biota at the Portland Harbor Superfund Site (Oregon, USA) suggest metabolism.

Chemosphere 2019 Feb 11;223:74-82. Epub 2019 Feb 11.

Washington State Department of Ecology, North 4601 Monroe Street, Spokane, WA 99205, USA.

In order to understand the sources and fate of polychlorinated biphenyls (PCBs) in several species of benthic biota, including clams (Corbicula fluminea), oligochaetes (Lumbriculus variegatus), and mussels (Margaritifera falcata and Anodonta nuttalliana) at the Portland Harbor Superfund Site (PHSS), their congener fingerprints were examined. First, diagnostic ratios of congeners known to be metabolizable vs. recalcitrant in the cytochrome P450 (CYP) pathway were significantly lower in biota than in its co-located sediment, indicating metabolism may have occurred. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.02.039DOI Listing
February 2019