20,714 results match your criteria Chemosphere[Journal]


Cobalt tetracarboxyl phthalocyanine-manganese octahedral molecular sieve (OMS-2) as a heterogeneous catalyst of peroxymonosulfate for degradation of diclofenac.

Chemosphere 2018 Dec 5;219:756-765. Epub 2018 Dec 5.

Shanghai Institute of Pollution Control and Ecological Security, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China. Electronic address:

A composite of cobalt tetracarboxyl phthalocyanine and amino-functionalized manganese octahedral molecular sieve (CNOMS-2) was synthesized in a simple way, and applied for degrading diclofenac in aqueous media by catalyzing of peroxymonosulfate heterogeneously. The experiment results revealed that the CNOMS-2/PMS system was highly efficient for DCF degradation in the pH range of 5-9, and the mechanism involved the generation of OH, SO⁻ and O by the activation of PMS. The main reactive oxygen species was found to be O by radical scavenging experiments and electron paramagnetic resonance (EPR) spectroscopy. Read More

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December 2018

Biodegradation of acenaphthene by Sphingobacterium sp. strain RTSB involving trans-3-carboxy-2-hydroxybenzylidenepyruvic acid as a metabolite.

Authors:
Somnath Mallick

Chemosphere 2018 Dec 6;219:748-755. Epub 2018 Dec 6.

Department of Chemistry, Sreegopal Banerjee College, Bagati, Magra, Hooghly, West Bengal, 712148, India. Electronic address:

A gram-negative bacterium designated as RTSB was isolated from a petroleum-contaminated soil competent of utilizing acenaphthene as the solitary source of carbon and energy. The strain RTSB was identified as a Sphingobacterium species based on the morphological, nutritional and biochemical features of the organism as well as 16S rRNA sequence analysis. By a combination of chromatographic and spectrometric techniques, different metabolites of the acenaphthene degradation pathway by the strain RTSB were isolated and identified, which indicate a novel acenaphthene degradation pathway involving 1-naphthoic acid. Read More

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December 2018

Benzo(a)pyrene inhibits the accumulation and toxicity of cadmium in subcellular fractions of Eisenia fetida.

Chemosphere 2018 Dec 11;219:740-747. Epub 2018 Dec 11.

College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210014, PR China. Electronic address:

Cadmium (Cd) and benzo [a]pyrene (BaP) often co-occur in the environment, and the critical body residue of organisms is used as an indicator of the toxic effects of contaminants. However, little is known about their distributions and toxicities when pollution of Cd and BaP are combined. Semi-static solution culture experiment was used to study the impacts of BaP on the subcellular distribution of the toxic metal Cd in the earthworm Eisenia fetida. Read More

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December 2018

Distribution of endocrine-disrupting chemicals in colloidal and soluble phases in municipal secondary effluents and their removal by different advanced treatment processes.

Chemosphere 2018 Dec 4;219:730-739. Epub 2018 Dec 4.

State Key Laboratory of Pollution Control and Resource Reuse, Center for Hydrosciences Research, School of the Environment, Nanjing University, Nanjing, PR China.

In this work, the partition of endocrine-disrupting chemicals (EDCs) in colloid-bound and truly dissolved phases in municipal wastewater before and after advanced treatment processes was determined. The effluents, which were filtered using a 0.45 μm membrane, were further separated with the 1 kDa cross-flow ultrafiltration system into two phases, namely, colloidal phase (0. Read More

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December 2018

Association between ambient particulate matter air pollution and ST-elevation myocardial infarction: A case-crossover study in a Chinese city.

Chemosphere 2018 Dec 12;219:724-729. Epub 2018 Dec 12.

Department of Cardiology, Yancheng Hospital Affiliated to Xuzhou Medical University and the First Hospital of Yancheng, Yancheng, 224006, China. Electronic address:

Background: Abundant epidemiological studies have revealed that short-term exposure to ambient air pollution increased the incidence of ischemic heart diseases. However, few investigations have explored the association between air pollution and ST-elevation myocardial infarction (STEMI), one major subtype of such events.

Methods: We conducted a time-stratified case-crossover study in two major hospitals of Yancheng, a city in East China, from January 2015 to February 2018. Read More

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December 2018

Moina macrocopa as a non-target aquatic organism for assessment of ecotoxicity of silver nanoparticles: Effect of size.

Chemosphere 2018 Dec 7;219:713-723. Epub 2018 Dec 7.

Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai 400019, Maharashtra, India.

The release of nanomaterials in water reservoirs is hazardous. Very few reports are available on the interaction of different sized nanoparticles with aquatic organisms and aquatic environment. In the present study, silver nanoparticles (AgNPs) having an average particle size of 20. Read More

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December 2018
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Characterizing the effect of Poast on Chlorella vulgaris, a non-target organism.

Chemosphere 2018 Dec 8;219:704-712. Epub 2018 Dec 8.

Marshall University Department of Chemistry, One John Marshall Dr., Huntington, WV, 25755, USA. Electronic address:

Herbicides may cause unexpected damage to non-target organisms as it is challenging to predict undesirable biotic interactions. Poast is a widely used herbicide formulation that contains sethoxydim and targets the acetyl-CoA carboxylase of perennial grasses. In this study, Chlorella vulgaris, a unicellular green microalga, was exposed to a 0. Read More

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December 2018

Ecological improvement assessment of a passive remediation technology for acid mine drainage: Water quality biomonitoring using bivalves.

Chemosphere 2018 Dec 6;219:695-703. Epub 2018 Dec 6.

UNESCO UNITWIN/WiCop Department of Physical-Chemistry, University of Cádiz, Campus Río de San Pedro, 11510, Puerto Real, Cádiz, Spain.

A passive treatment plant, located in the Iberian Pyrite Belt (Huelva, Southwest Spain), was designed for acid mine drainage remediation. Since its installation, the improvement of water quality in terms of hydrochemical composition has been demonstrated successfully. However, according to the Water Framework Directive, the treated effluent must have ecological values for potential living. Read More

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December 2018

Quantifying the impacts of artisanal gold mining on a tropical river system using mercury isotopes.

Chemosphere 2018 Dec 8;219:684-694. Epub 2018 Dec 8.

Géosciences Environnement Toulouse (GET), Observatoire Midi Pyrénées, CNRS, IRD, Université de Toulouse, 31400 Toulouse, France.

In some locations, artisanal and small-scale gold-mining (ASGM) represents a significant source of anthropogenic Hg to freshwater environments. The Hg released from ASGM can contaminate aquatic fauna and pose health risks to downstream populations. Total Hg (THg) concentrations, speciation, and isotopic compositions were analyzed in water, suspended particulate matter, soil, and bottom sediment samples from pristine areas and in places of active and legacy gold mining along the Oyapock River (French Guiana) and its tributaries. Read More

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December 2018

Long-term effects of chlorantraniliprole reduced risk insecticide applied as seed treatment on lady beetle Harmonia axyridis (Coleoptera: Coccinellidae).

Chemosphere 2018 Dec 10;219:678-683. Epub 2018 Dec 10.

Departamento de Entomologia, Universidade Federal de Lavras, Lavras, MG, Brazil.

Chlorantraniliprole (CAP) is a reduced risk insecticide, which used as seed treatment in many crops. However, CAP residues can contaminate pollen and nectar, becoming a potential risk to beneficial arthropods. The aims of this study were to (1) determine the non-target effects of CAP seed treatment of cotton on Harmonia axyridis (Coleoptera: Coccinellidae) over two generations, and (2) assess the ability of the lady beetles to avoid plants grown from treated seeds. Read More

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December 2018

Sublethal concentrations of chlorpyrifos induce changes in the thermal sensitivity and tolerance of anuran tadpoles in the toad Rhinella arenarum?

Chemosphere 2018 Dec 7;219:671-677. Epub 2018 Dec 7.

Departamento de Ecología Evolutiva, Estación Biológica de Doñana, CSIC, Avda. Américo Vespucio s/n, 41092, Sevilla, Spain. Electronic address:

Amphibians are considered one of the groups most susceptible to chemical contamination, therefore are good bio-indicators of aquatic pollution. Synergistic effects of temperature and pesticides have been found in amphibians determining amplified toxicity effect on survival and malformations with increasing temperatures. We studied the sensitivity of sublethal concentrations of chlorpyrifos in Rhinella arenarum tadpoles over on two fitness related thermal traits: locomotor swimming performance and thermal tolerance limits (CT = critical thermal maximum and CT = critical thermal minimum). Read More

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December 2018
1 Read

Changes in the pattern of polycyclic aromatic hydrocarbons in soil treated with biochar from a multiyear field experiment.

Chemosphere 2018 Nov 27;219:662-670. Epub 2018 Nov 27.

Institute of Biometeorology (IBIMET), National Research Council (CNR), Via G. Caproni 8, 50145 Florence, Italy.

The influence of biochar added to an agricultural soil on polycyclic aromatic hydrocarbon (PAH) levels, PAH diagnostic ratios and soil properties was investigated in a five-year field experiment. The experiment was carried out in an Italian vineyard and included two biochar treatments: 16.5 t ha of biochar applied in 2009 (soil B); 16. Read More

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November 2018

Maternal urinary benzophenones and infant birth size: Identifying critical windows of exposure.

Chemosphere 2018 Nov 28;219:655-661. Epub 2018 Nov 28.

Key Laboratory of Environment and Health, Ministry of Education & Ministry of Protection, and State Key Laboratory of Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China. Electronic address:

Benzophenones (BPs) are widely used as ultraviolet absorbers and fragrance retention agents. Evidences from animal studies have suggested that exposure to BPs may affect fetal growth, but human data is limited and no study is concerning critical windows of BPs exposure throughout pregnancy in relation to fetal growth. We aimed to investigate the associations of prenatal exposure to BPs with birth size and examine the critical exposure windows of fetus development. Read More

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November 2018
1 Read

Mechanism and kinetics studies of the atmospheric oxidation of p,p'-Dicofol by OH and NO radicals.

Chemosphere 2018 Dec 10;219:645-654. Epub 2018 Dec 10.

Environment Research Institute, Shandong University, Jinan, 250100, China.

As an effective organochlorine pesticide, Dicofol has been extensively applied in more than 30 countries for protecting over 60 different crops. Considering its large consumption and potential adverse effect on human health (endocrine disrupting and carcinogenicity), the fate of Dicofol sprayed into the air is of public concern. In this study, we conducted a comprehensive study on the reaction mechanisms of p,p'-Dicofol with OH and NO radicals using DFT method. Read More

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December 2018

Bioaccumulation and morphological traits in a multi-generation test with two Daphnia species exposed to lead.

Chemosphere 2018 Dec 7;219:636-644. Epub 2018 Dec 7.

Department of Biology & CESAM, University of Aveiro, 3810-193, Portugal.

Anthropic pressure negatively affects natural environments. Lead (Pb) is a non-essential highly toxic metal that is present in aquatic ecosystems. Two daphnid species from two different latitudes, the temperate Daphnia magna and the tropical Daphnia similis were used as test-organisms to evaluate a long-term Pb exposure. Read More

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December 2018

Recent advances in metalloporphyrins for environmental and energy applications.

Chemosphere 2018 Dec 4;219:617-635. Epub 2018 Dec 4.

School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, 430074, PR China. Electronic address:

Porphyrin-based chemistry has reached an unprecedented period of rapid development after decades of study. Due to attractive multifunctional properties, porphyrins and their analogues have emerged as multifunctional organometals for environmental and energy purposes. In particular, pioneer works have been conducted to explore their application in pollution abatement, energy conversion and storage and molecule recognition. Read More

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December 2018
1 Read

Uranium distribution in groundwater and assessment of age dependent radiation dose in Amritsar, Gurdaspur and Pathankot districts of Punjab, India.

Chemosphere 2018 Dec 7;219:607-616. Epub 2018 Dec 7.

Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India. Electronic address:

A comprehensive study of seasonal variation of uranium distribution in groundwater of Amritsar, Gurdaspur and Pathankot districts of Punjab, India and assessment of associated radiological risks, chemical risks and effective radiation dose for different age groups, was conducted to determine its health impact on humans residing in these regions. Physicochemical parameters such as pH, EC, TDS, total hardness and contents of various anions such as carbonates/bicarbonates, chlorides, fluorides, nitrates, sulphates and phosphates in groundwater were also analysed to determine correlation between groundwater chemistry and uranium distribution. The average values of uranium concentration in ground water samples of Amritsar, Gurdaspur and Pathankot districts were found to be 8. Read More

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December 2018

A review of recent strategies for acid mine drainage prevention and mine tailings recycling.

Chemosphere 2018 Nov 28;219:588-606. Epub 2018 Nov 28.

Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Japan.

Acid mine/rock drainage (AMD/ARD), effluents with low pH and high concentrations of hazardous and toxic elements generated when sulfide-rich wastes are exposed to the environment, is considered as a serious environmental problem encountered by the mining and mineral processing industries around the world. Remediation options like neutralization, adsorption, ion exchange, membrane technology, biological mediation, and electrochemical approach have been developed to reduce the negative environmental impacts of AMD on ecological systems and human health. However, these techniques require the continuous supply of chemicals and energy, expensive maintenance and labor cost, and long-term monitoring of affected ecosystems until AMD generation stops. Read More

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November 2018
1 Read

Impact of environmental pollution on trace elements in vegetables and associated potential risk to human health in industrial town Mandi-gobindgarh (India).

Chemosphere 2018 Dec 6;219:574-587. Epub 2018 Dec 6.

Department of Zoology, Panjab University, Chandigarh, U.T, India. Electronic address:

Present study was chosen to elucidate the role of Environmental Pollution in the contamination of vegetables with trace elements in Mandi-gobindgarh (India) and associated potential risk to human health. Total 14 vegetable types including leafy vegetables (Brassica, Metha, Coriander, Spinach, Cabbage), fruit vegetables (Brinjal, Cauliflower, Bottle-gourd, Tomato, Green chilli) and root vegetables (Radish, Carrot, Turnip, Potato) were collected from Mandi-gobindgarh and analyzed for Zn, Cu, Mn, Mo, Ni, Se and Fe on WD-XRF. Results showed more than permissible limits of Zn (23. Read More

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December 2018

Differential exposure to organophosphate flame retardants in mother-child pairs.

Chemosphere 2018 Dec 4;219:567-573. Epub 2018 Dec 4.

Departmentof Environmental Health Sciences, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY 10032, USA. Electronic address:

Background: Humans are ubiquitously exposed to flame retardants, including organophosphate esters (OPEs), through direct contact with consumer products or exposure through household dust. Children are at increased risk because of their proximity to dust, hand-to-mouth activity, and the importance of childhood as a critical period in neurodevelopment.

Objectives: To quantify differences in exposure levels between mothers and children (three to six years of age), we analyzed urinary metabolites of OPEs. Read More

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December 2018
2 Reads

Possible involvement of Fas/FasL-dependent apoptotic pathway in α-bisabolol induced cardiotoxicity in zebrafish embryos.

Chemosphere 2018 Dec 8;219:557-566. Epub 2018 Dec 8.

Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China. Electronic address:

α-Bisabolol, an unsaturated monocyclic sesquiterpene alcohol, is a common ingredient in many pharmaceuticals and personal care products (PPCPs). Despite being widely used, little is known about its toxic effects on organisms and aquatic environment. In this study, we investigated the developmental toxicity of α-Bisabolol, especially its effects on the cardiac development using zebrafish embryos as a model. Read More

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December 2018
1 Read

The impact of hydroelectric dams on mercury dynamics in South America: A review.

Chemosphere 2018 Dec 6;219:546-556. Epub 2018 Dec 6.

Programa de Pós-Graduação Em Ecologia e Recursos Naturais, Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000 - Parque Califórnia, CEP: 28013-602, Campos Dos Goytacazes, Rio de Janeiro, Brazil.

The increase in global demand for electric energy is reflected in plans to construct numerous hydroelectric dams in South America that can cause chronic ecological impacts if not built and managed correctly. One of the main impacts generated by hydropower dams is the accumulation of Hg chemical species in their reservoir compartments and the downstream transport of these contaminants. Hg circulation in these environments has been studied for 27 years and this review brings a synthesis of the dynamics that are now well established, so that future studies can focus on gaps and inconsistent results in the literature. Read More

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December 2018
6 Reads

Concentrations, speciation, and ecological risk of heavy metals in the sediment of the Songhua River in an urban area with petrochemical industries.

Chemosphere 2018 Dec 10;219:538-545. Epub 2018 Dec 10.

Jilin Institute of Chemical Technology, Jilin, 132022, China. Electronic address:

In this study, the pollution status and the ecological risks of heavy metals (Cu, Zn, Pb, Ni and Cr) in the sediments of the Songhua River in an urban area with petrochemical industries were assessed. The highest mean concentration of total heavy metals occurred in the freezing period, and the highest total heavy metal concentrations were observed near the petrochemical industrial area. The geo-accumulation index indicated that Cu was the most contaminated heavy metal. Read More

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December 2018

Behavioral, molecular and physiological responses of embryo-larval zebrafish exposed to types I and II pyrethroids.

Chemosphere 2018 Dec 6;219:526-537. Epub 2018 Dec 6.

Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Lubbock, TX 79416, USA.

Pyrethroids are potent neurotoxicants that may elicit multiple pathways of toxicity in non-target organisms. Comparative studies on the mechanistic and developmental effects of types I and II pyrethroids against non-target aquatic species are limited. This study assessed the effects of the two pyrethroid types against embryo-larval zebrafish (Danio rerio) at environmentally relevant and laboratory concentrations. Read More

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December 2018

Developmental toxicity of kresoxim-methyl during zebrafish (Danio rerio) larval development.

Chemosphere 2018 Dec 8;219:517-525. Epub 2018 Dec 8.

Institute of Quality and Standard for Agro-products, Zhejiang Academy of Agricultural Sciences, State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Hangzhou, 310021, Zhejiang, China. Electronic address:

Kresoxim-methyl (KM) is a broad spectrum strobilurin fungicide that has been used widely on crops around the world. In the present study, we aimed to investigate the toxic effects of KM using various sublethal endpoints during zebrafish (Danio rerio) larval development. Results showed that the LC values of KM to zebrafish at multiple life stages (embryo, larvae, juvenile and adult) were 0. Read More

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December 2018
1 Read

Effects of biochar on growth, and heavy metals accumulation of moso bamboo (Phyllostachy pubescens), soil physical properties, and heavy metals solubility in soil.

Chemosphere 2018 Nov 26;219:510-516. Epub 2018 Nov 26.

State Key Laboratory of Subtropical Silviculture, Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, Zhejiang, 311300, PR China.

Pot experiment was conducted to investigate the effects of wood biochar (5%), bamboo biochar (5%), rice straw biochar (5%) and Chinese walnut shell biochar (5%) on growth, accumulation of heavy metals in moso bamboo, soil physical properties, and solubility of heavy metals in soil. The results revealed that dry weight of moso bamboo was significantly increased in treatments of wood biochar (5%), rice straw biochar (5%) and Chinese walnut shell biochar (5%) except bamboo biochar (5%). Application of straw biochar (5%) was most effective in enhancing plants biomass, with increase of 157%, 113% and 111% in leaves, roots and stems of moso bamboo. Read More

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November 2018
1 Read

Synthesis of fly ash based zeolite-reduced graphene oxide composite and its evaluation as an adsorbent for arsenic removal.

Chemosphere 2018 Dec 4;219:504-509. Epub 2018 Dec 4.

School of Engineering, Indian Institute of Technology, Mandi, 175005, Himachal Pradesh, India. Electronic address:

A zeolite-reduced graphene oxide (ZrGO) based composite was synthesized to remove arsenic from water. To make a low-cost adsorbent, zeolite was synthesized using an inexpensive waste material; fly ash, which was further used to produce the ZrGO composite. Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Raman spectra were used to characterize the morphology and surface composition of the synthesized materials. Read More

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December 2018
1 Read

Coupling interaction between porous biochar and nano zero valent iron/nano α-hydroxyl iron oxide improves the remediation efficiency of cadmium in aqueous solution.

Chemosphere 2018 Dec 7;219:493-503. Epub 2018 Dec 7.

College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China. Electronic address:

Based on the interaction between mesoscopic biochar materials and nanomaterials, the synergistic mechanism of the two materials in the process of cadmium remediation was studied. KCO activated porous biochar (KBC) loaded with nano-zero-valent iron (nZVI)/nano-α-hydroxy-iron oxide (nHIO) was studied. Macroscopically, batch adsorption experiments were carried out to describe the adsorption properties of the composites. Read More

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December 2018
1 Read

A multi-site approach to investigate the role of toxicity and confounding factors on plant bioassay results.

Chemosphere 2018 Dec 3;219:482-492. Epub 2018 Dec 3.

Bordeaux INP, G&E, EA 4592, F-33600, Pessac, France; Univ. Bordeaux Montaigne, G&E, EA 4592, F-33600, Pessac, France.

Development of organisms that live on contaminated soils depends on toxicity as well as several physical and chemical soil properties. We aimed to identify plant bioassays most responsive to contaminants and not to confounding factors due to soil type differences. We implemented a multi-site approach in seven contaminated sites and used different ordinary plant bioassays (fourteen-day-shoot biomass and five-day-root and shoot elongation). Read More

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December 2018
3 Reads

Field evaluation of sequential hand wipes for flame retardant exposure in an electronics recycling facility.

Chemosphere 2018 Dec 5;219:472-481. Epub 2018 Dec 5.

College of William & Mary, Virginia Institute of Marine Science, Department Aquatic Health Sciences, Gloucester Point, VA, USA.

Flame retardants have been associated with endocrine disorders, thyroid disruption, reproductive toxicity, and immunological interference. Through dismantling and recycling electronics and electric products, flame retardants can be released into the air and settle on work surfaces which may lead to dermal exposure. Hand wipe sampling is commonly used to evaluate dermal exposure. Read More

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December 2018
2 Reads

Physiological response and mineral elements accumulation pattern in Sesuvium portulacastrum L. subjected in vitro to nickel.

Chemosphere 2018 Dec 10;219:463-471. Epub 2018 Dec 10.

Centre de Biotechnologie de Borj Cedria (LR15CBBC02), Laboratoire des Plantes Extrèmophiles, BP 901 2050 Hammam-Lif, Tunisia. Electronic address:

Sesuvium portulacastrum, a halophyte with high tolerance to heavy metals like Cd, Pb and Ni is considered for phytoremediation of metal contaminated saline soils. The tolerance to a selected metal ion could, by hypothesis, be stimulated through in vitro adaptation and regeneration of the plant. Seedlings obtained by in vitro micro-propagation, were exposed to 0, 25 and 50 μM Ni, as NiCl, in agar-based medium for 30 days. Read More

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December 2018

Significant inhibition of photosynthesis and respiration in leaves of Cucumis sativus L. by oxybenzone, an active ingredient in sunscreen.

Chemosphere 2018 Dec 3;219:456-462. Epub 2018 Dec 3.

State Key Laboratory of Crop Biology, China; College of Life Sciences, Shandong Agricultural University, China. Electronic address:

Oxybenzone (OBZ), an active ingredient in most sunscreens, was recently shown to be toxic to humans, corals and other animals. This study is the first to demonstrate that OBZ can significantly inhibit photosynthesis and respiration in the leaves of a higher plant, cucumber. An OBZ suspension content as low as 0. Read More

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December 2018
3 Reads

Application of an emulsified polycolloid substrate biobarrier to remediate petroleum-hydrocarbon contaminated groundwater.

Chemosphere 2018 Dec 5;219:444-455. Epub 2018 Dec 5.

Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan. Electronic address:

Emulsified polycolloid substrate (EPS) was developed and applied in situ to form a biobarrier for the containment and enhanced bioremediation of a petroleum-hydrocarbon plume. EPS had a negative zeta potential (-35.7 mv), which promoted its even distribution after injection. Read More

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December 2018
1 Read

Responses of propagule germination and sexual reproduction of submerged macrophytes exposed to cadmium.

Chemosphere 2018 Dec 8;219:436-443. Epub 2018 Dec 8.

Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China. Electronic address:

Submerged macrophytes are considered the main primary producers in shallow lakes. Recently, they have experienced a decline due to increasing environmental impacts, e.g. Read More

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December 2018
1 Read

High-performance carbon/MnO micromotors and their applications for pollutant removal.

Chemosphere 2018 Dec 7;219:427-435. Epub 2018 Dec 7.

Institute of Environmental Engineering, ETH Zurich, Schafmattstrasse 6, 8093, Zurich, Switzerland; Advanced Analytical Technologies Laboratory, EMPA, Überlandstrasse 129, 8600, Dübendorf, Switzerland. Electronic address:

The wide applications of particulate micromotors in practice, especially in the removal of environmental pollutants, have been limited by the low production yields and demand on high concentration of fuel such as HO. Carbon/MnO micromotors were made hydrothermally using different carbon allotropes including graphite, carbon nanotube (CNT), and graphene for treatment of methylene blue and toxic Ag ions. The obtained micromotors showed high speed of self-propulsion. Read More

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December 2018
4 Reads

Spatial distribution and source identification of hydrophobic organic compounds (HOCs) on sedimentary microplastic in Hong Kong.

Chemosphere 2018 Dec 7;219:418-426. Epub 2018 Dec 7.

Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong Special Administrative Region; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Hong Kong Special Administrative Region. Electronic address:

The spatial distribution, composition and source of hydrophobic organic compounds (HOCs) including polyaromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorinated pesticides (OCPs) of the sedimentary microplastics (0.25-5 mm) in Hong Kong were investigated. The concentration of ΣPAHs ranged between 70. Read More

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December 2018
3 Reads
3.340 Impact Factor

Fluoroquinolones in agricultural soils: Multi-temporal variation and risks in Rio de Janeiro upland region.

Chemosphere 2018 Nov 27;219:409-417. Epub 2018 Nov 27.

Laboratório de Radioisótopos, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho s/n, Bloco G0, Sala 60, Subsolo, Rio de Janeiro, 21941-902, Brazil.

Our main goal was to investigate the potential accumulation of fluoroquinolones (FQs) in agricultural soils over extended periods of land use, predicting leaching and estimating risk quotients for soil microorganisms. Short to long-term of poultry litter fertilization (<1-30 years) were evaluated for enrofloxacin (ENR) and ciprofloxacin (CIP) input, in addition to the emergence of plasmid-mediated quinolone resistance (PMQR) genes. High FQs concentration (range 0. Read More

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November 2018
1 Read

Fabrication of ploydopamine-kaolin supported Ag nanoparticles as effective catalyst for rapid dye decoloration.

Chemosphere 2018 Dec 7;219:400-408. Epub 2018 Dec 7.

College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China.

In this work, silver nanoparticles supported on polydopamine-kaolin composite (PDA-kaolin-Ag) was fabricated by an in-situ reduction method with PDA as both reductant and stabilizer. The morphology, composition, and structure of PDA-kaolin-Ag composite were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The catalytic reduction tests confirmed the importance of PDA modification and high catalytic activities of this as-prepared PDA-kaolin-Ag composite towards a model dye Rhodamine B. Read More

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December 2018
1 Read

Transport of platinum-based pharmaceuticals in water-saturated sand and natural soil: Carboplatin and cisplatin species.

Chemosphere 2018 Dec 4;219:390-399. Epub 2018 Dec 4.

Department of Earth and Planetary Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel.

This study reports the transport characteristics of the pharmaceutical compounds carboplatin and cisplatin, and their respective derivatives, in saturated sand and soil columns. Pharmaceuticals are recognized as emerging pollutants of soil and water resources, but studies of the transport characteristics of organometallic pharmaceuticals in soil-water environments are rare. A recent study of oxaliplatin transport in natural soil raises the question of whether or not its behavior is representative of all Pt-based pharmaceuticals behavior in soil-water systems. Read More

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December 2018

Nitrogen transformation during pyrolysis of oilfield sludge with high polymer content.

Chemosphere 2018 Nov 27;219:383-389. Epub 2018 Nov 27.

State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China.

Oilfield sludge is recognized as a hazardous solid waste in China because of its considerable hydrocarbon content and other toxic components. In this study, the nitrogen transformation during pyrolysis of typical oil sludge samples produced in the Daqing oilfield (the largest oilfield in China), was experimentally investigated. X-ray photoelectron spectroscopy (XPS) and thermos gravimetric (TG) were used in laboratory-scale experiments and batch pyrolysis experiments were conducted at 200-800 °C in a tubular reactor to obtain quantitative information on the change of nitrogen conversion in the char, tar, and gas fractions. Read More

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November 2018
1 Read

Metals geochemistry and ecological risk assessment in a tropical mangrove (Can Gio, Vietnam).

Chemosphere 2018 Nov 30;219:365-382. Epub 2018 Nov 30.

Department of Analytical Chemistry, Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Viet Nam; Faculty of Chemical Engineering and Food Technology, Nguyen Tat Thanh University, Viet Nam.

Mangrove sediments act as natural biogeochemical reactors, modifying metals partitioning after their deposition. The objectives of the present study were: to determine distribution and partitioning of metals (Fe, Mn, Ni, Cr, Cu, Co and As) in sediments and pore-waters of Can Gio Mangrove; and to assess their ecological risks based on Risk Assessment Code. Three cores were collected within a mudflat, beneath Avicennia alba and Rhizophora apiculata stands. Read More

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November 2018
4 Reads

Identification of biofilm formation and exoelectrogenic population structure and function with graphene/polyanliline modified anode in microbial fuel cell.

Chemosphere 2018 Nov 30;219:358-364. Epub 2018 Nov 30.

State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin, 150090, China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China. Electronic address:

Improving anode configuration with polymer or nanomaterial modification is promising for enhancing microbial fuel cell performance. However, how anode modification affects biofilm development and electrogenic function remains poorly understood. In this study, the carbon cloth anode modified with polyaniline and reduced graphene oxide was successfully fabricated which obtained the highest power output. Read More

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November 2018
5 Reads

Competitive adsorption of heavy metals in aqueous solution onto biochar derived from anaerobically digested sludge.

Chemosphere 2018 Dec 7;219:351-357. Epub 2018 Dec 7.

State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China. Electronic address:

Heavy metals often coexist in contaminated wastewater systems and their competitive behavior could affect the adsorption capacity of biochar. Till now, the competitive adsorption of heavy metals by biochar derived from anaerobically digested sludge has never been reported. In this work, biochar from anaerobically digested sludge was synthesized and characterized to explore the competitive behavior of widely co-existed Pb(II) and Cd(II). Read More

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December 2018
1 Read

Crop-dependent changes in water absorption of expanded polystyrene in soil environments.

Chemosphere 2018 Dec 8;219:345-350. Epub 2018 Dec 8.

Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, South Korea. Electronic address:

As expanded polystyrene (EPS) has been utilized in soil environments, there is a need to understand interactions between chemical adsorption and the soil system. We conducted a plant bioassay using agricultural crops in a soil system containing a macro-sized EPS (8.3 ± 0. Read More

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December 2018
2 Reads

Cyclodextrin-enhanced 1,4-dioxane treatment kinetics with TCE and 1,1,1-TCA using aqueous ozone.

Chemosphere 2018 Nov 29;219:335-344. Epub 2018 Nov 29.

Water Science and Management Program, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA; Plant & Environmental Science, New Mexico State University, MSC 3Q P.O. Box 30003, Las Cruces, NM 88003, USA. Electronic address:

Enhanced reactivity of aqueous ozone (O) with hydroxypropyl-β-cyclodextrin (HPβCD) and its impact on relative reactivity of O with contaminants were evaluated herein. Oxidation kinetics of 1,4-dioxane, trichloroethylene (TCE), and 1,1,1-trichloroethane (TCA) using O in single and multiple contaminant systems, with and without HPβCD, were quantified. 1,4-Dioxane decay rate constants for O in the presence of HPβCD increased compared to those without HPβCD. Read More

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November 2018
1 Read

Use of iron ore tailing from tailing dam as catalyst in a fenton-like process for methylene blue oxidation in continuous flow mode.

Chemosphere 2018 Dec 7;219:328-334. Epub 2018 Dec 7.

Reseacher at Federal University of Minas Gerais, Chemistry Department, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil. Electronic address:

The global demand for iron ore with high iron contents to supply the steel industry is associated, in most countries, with the generation of tailings from mineral processing. The chemical compositions of iron ore tailings (basically FeO and SiO) make them an excellent candidate as a catalyst for advanced oxidation processes (AOPs), especially the Fenton process and its derivatives. Therefore, this paper aimed to transform iron ore tailings from tailing dams into catalysts able to activate HO for the purpose of treating, in a continuous flow, effluents contaminated with organic dyes, employing methylene blue as a model molecule. Read More

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December 2018
3 Reads

Cadmium bioaccumulation and elimination in tissues of the freshwater mussel Anodonta woodiana.

Chemosphere 2018 Dec 6;219:321-327. Epub 2018 Dec 6.

School of Life Science, Shanxi University, Taiyuan, Shanxi, 030006, China. Electronic address:

Experiments were carried out to investigate the bioaccumulation and elimination of cadmium (Cd) in tissues (kidney, gills, digestive gland, mantle, visceral mass, foot, adductor muscle and hemolymph) from the freshwater mussel, Anodonta woodiana. The mussels were exposed to subchronic Cd at concentrations of 0.168 and 0. Read More

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December 2018

Assessment of ozonation reactivity of aromatic and oxidized naphthenic acids species separated using a silver-ion solid phase extraction method.

Chemosphere 2018 Nov 27;219:313-320. Epub 2018 Nov 27.

Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada. Electronic address:

Owing to the complexity of naphthenic acids (NAs) in oil sands process water (OSPW), previous ozone-treatment studies mainly investigated the removal of classical NAs (aliphatic O-NAs) and the understanding of ozonation reactivity of other NA species has been limited. This work utilized a silver-ion solid phase extraction (SPE) approach to separate individual NA species into 20 fractions before subsequent ozone treatment. The ozonation reactivity of aromatic and oxidized NA species in isolated fractions was studied for the first time. Read More

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November 2018

Influence of sulfadiazine on anaerobic fermentation of waste activated sludge for volatile fatty acids production: Focusing on microbial responses.

Chemosphere 2018 Dec 4;219:305-312. Epub 2018 Dec 4.

State Key Laboratory of Pollution Control and Resources Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.

Extensive studies on anaerobic fermentation of waste activated sludge (WAS) for volatile fatty acids (VFAs) production focused on the effects of operating parameters and pretreatment methods, and little information is available for those of organic pollutants which were absorbed on sludge. The influence of sulfadiazine (SDZ), a typical antibiotic pollutant in WAS, on VFAs production during anaerobic fermentation was investigated in this study. The accumulation of VFAs was remarkably affected in the presence of SDZ. Read More

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December 2018

Photoelectrocatalytic decolorization of azo dyes with nano-composite oxide layers of ZnO nanorods decorated with Ag nanoparticles.

Chemosphere 2018 Dec 3;219:296-304. Epub 2018 Dec 3.

Universidad Nacional De Ingeniería, Lima, Peru.

Photoelectrocatalysis provides an excellent frame for the application of photocatalytic nanostructured materials on easy recoverable supports. This study reports the two-step synthesis of hierarchically nanostructured ZnO/Ag composite photoelectrodes. Wurtzite ZnO was selectively electronucleated as spheroidal seeds on fluor doped tin oxide substrates and nanodecorated with Ag nanoclusters under electrochemical control. Read More

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December 2018