2,157,963 results match your criteria Environmental Health Insights [Journal]


C anatomy can evolve via a single developmental change.

Ecol Lett 2018 Dec 17. Epub 2018 Dec 17.

Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK.

C photosynthesis is a complex trait that boosts productivity in warm environments. Paradoxically, it evolved independently in numerous plant lineages, despite requiring specialised leaf anatomy. The anatomical modifications underlying C evolution have previously been evaluated through interspecific comparisons, which capture numerous changes besides those needed for C functionality. Read More

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December 2018

miR-505-3p is a repressor of the puberty onset in female mice.

J Endocrinol 2018 Dec 1. Epub 2018 Dec 1.

J Xiao, The College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China.

Puberty onset is a complex trait regulated by multiple genetic and environmental factors. In this study, we narrowed a puberty related QTL region down to a 1.7 Mb region on chromosome X in female mice and inferred miR-505-3p as the functional gene. Read More

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December 2018

O pollution in a future climate increases the competition between summer rape and wild mustard.

Plant Physiol Biochem 2018 Dec 11;135:194-205. Epub 2018 Dec 11.

Vytautas Magnus University, Department of Environmental Sciences, Vileikos St. 8-223, LT-44404, Kaunas, Lithuania.

The initial aim of this study was to evaluate an effect of elevated CO concentration and air temperature (future climate) and O pollution on mono- and mixed-culture grown summer rape (Brassica napus L.) and wild mustard (Sinapis arvensis L.). Read More

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December 2018

Effects of mechanical stretching, desorption and isotope exchange on deuterated eucalypt wood studied by near infrared spectroscopy.

Spectrochim Acta A Mol Biomol Spectrosc 2018 Dec 7;211:254-259. Epub 2018 Dec 7.

New Zealand School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand. Electronic address:

Deuterium exchange combined with near infrared (NIR) spectroscopy was used to study the roles of accessible and inaccessible cellulose in the load transfer of eucalyptus wood. Monitoring the drying process helped to assign NIR bands of deuterated wood samples. Polarized NIR spectra of protonated and deuterated samples confirmed that inaccessible hydroxyl groups in eucalyptus wood were preferably oriented in the longitudinal direction. Read More

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December 2018

Competitive removal of Pb and malachite green from water by magnetic phosphate nanocomposites.

Water Res 2018 Nov 28;150:442-451. Epub 2018 Nov 28.

College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, China.

The competitive removal of Pb and malachite green (MG) from water by three magnetic phosphate nanocomposites (FeO/Ba(PO), FeO/Sr(PO)(OH), and FeO/SrBa(PO)(OH), namely "FBP", "FSP", and "FSBP", respectively) was systematically investigated compared with FeO ("F") nanoparticle. Temperature and adsorbent dosage for competitive removal were optimized to be 20 °C and 0.05 g in 50 mL. Read More

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November 2018

Visible-light-driven photocatalytic degradation of diclofenac by carbon quantum dots modified porous g-CN: Mechanisms, degradation pathway and DFT calculation.

Water Res 2018 Dec 3;150:431-441. Epub 2018 Dec 3.

Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, PR China. Electronic address:

Metal-free photocatalysts have attracted growing concern in recent years. In this work, a new class of carbon quantum dots (CQDs) modified porous graphitic carbon nitride (g-CN) is synthesized via a facile polymerization method. With the optimal CQDs loading, the CQDs modified g-CN exhibits ∼15 times higher degradation kinetic towards diclofenac (DCF) than that of pure g-CN. Read More

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December 2018
3 Reads

Coupling stable isotopes and water chemistry to assess the role of hydrological and biogeochemical processes on riverine nitrogen sources.

Water Res 2018 Dec 6;150:418-430. Epub 2018 Dec 6.

College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, Zhejiang University, Hangzhou, 310058, China. Electronic address:

Accurate source identification is critical for optimizing water pollution control strategies. Although the dual stable isotope (N-NO/O-NO) approach has been widely applied for differentiating riverine nitrogen (N) sources, the relatively short-term (<1 yr) N-NO/O-NO records typically used in previous studies often hinders rigorous assessment due to high temporal variability associated with watershed N dynamics. Estimated contributions of legacy N sources in soils and groundwater to riverine N export by modeling approaches in many previous studies also lack validation from complementary information, such as multiple stable isotopes. Read More

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December 2018

Process intensification of anaerobic digestion: Influence on mixing and process performance.

Bioresour Technol 2018 Dec 7;274:533-540. Epub 2018 Dec 7.

Chemical & Environmental Engineering, School of Engineering, RMIT University, 124 La Trobe St., Melbourne, VIC 3000, Australia. Electronic address:

The adoption of process intensification to anaerobic digestion can present significant complications for digester mixing and process performance. This work investigated how increasing the solids concentration of the digester sludge influenced the process at various mixing energy inputs. Based on the results, adequate mixing is defined qualitatively as the input of sufficient energy to mobilize the reactor contents without producing significant regions of inhibitory shear force. Read More

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December 2018

Fabrication of bean dreg-derived carbon with high adsorption for methylene blue: Effect of hydrothermal pretreatment and pyrolysis process.

Bioresour Technol 2018 Dec 8;274:525-532. Epub 2018 Dec 8.

Department of Housing and Urban-Rural Development of Hunan Provincial, Changsha 410082, PR China.

This study explored the cooperative effects of hydrothermal or activators pretreatment and pyrolysis process on the chemical composition of bean dreg (BD)-derived carbon materials and its adsorption characteristics for methylene blue (MB) further. The results showed that hydrothermal assisted pyrolysis carbon with or without activator (HBK and HB) possess higher BET surface area than no hydrothermal assisted carbon (BKs and B, respectively). But surface area alone was not a critical factor contributing to MB adsorption, it also depends on strong electrostatic interaction and the hydrogen bonding interaction between N in MB combines with OH and COO group of adsorbent surface by pH-dependent adsorption and pseudo-second-order model. Read More

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December 2018

Prevalence of asthma in multiple sclerosis: A United States population-based study.

Mult Scler Relat Disord 2018 Dec 12;28:69-74. Epub 2018 Dec 12.

Neuroimmunological Disorders Gene-Environment Epidemiology Laboratory, Department of Population and Quantitative Health Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA. Electronic address:

Background: Multiple sclerosis (MS) and asthma are complex multifactorial diseases which adversely impact daily functioning. However, the prevalence of asthma in those with MS is not clear. The objective of this study is to characterize the prevalence of asthma in those with MS, with considerations for age, gender, and race. Read More

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December 2018

Association between exposure to a mixture of phenols, pesticides, and phthalates and obesity: Comparison of three statistical models.

Environ Int 2018 Dec 14;123:325-336. Epub 2018 Dec 14.

State Key Laboratory of Reproductive Medicine, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China. Electronic address:

Background: The evaluation of the chemical impact on human health is usually constrained to the analysis of the health effects of exposure to a single chemical or a group of similar chemicals at one time. The effects of chemical mixtures are seldom analyzed. In this study, we applied three statistical models to assess the association between the exposure to a mixture of seven xenobiotics (three phthalate metabolites, two phenols, and two pesticides) and obesity. Read More

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December 2018

Ambient PM air pollution and cardiovascular disease prevalence: Insights from the 33 Communities Chinese Health Study.

Environ Int 2018 Dec 14;123:310-317. Epub 2018 Dec 14.

Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China. Electronic address:

Backgrounds: Evidence on the association between long-term exposure to particulate matter with aerodynamic diameter ≤2.5 μm (PM) and cardiovascular disease (CVD) is scarce in developing countries. Moreover, few studies assessed the role of the PM (≤1. Read More

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December 2018

Vertical profiles and distributions of aqueous endocrine-disrupting chemicals in different matrices from the Pearl River Delta and the influence of environmental factors.

Environ Pollut 2018 Dec 7;246:328-335. Epub 2018 Dec 7.

State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.

The occurrence and distributions of selected endocrine-disrupting chemicals (EDCs), along with related environmental factors, were investigated in two rivers and six reservoirs in the Pearl River Delta. The vertical profiles of aqueous 4-tert-octylphenol (OP), 4-nonylphenol (NP), and estrone (E1) were constant, with little change in concentration between the surface and the river bottom, while higher aqueous concentrations of bisphenol A (BPA) were found in the bottom layers of the rivers. OP and NP in suspended particulate matter (SPM) were transferred from the surface to the bed layer, ultimately accumulating in the sediment. Read More

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December 2018

Fine particle-bound polycyclic aromatic hydrocarbons (PAHs) at an urban site of Wuhan, central China: Characteristics, potential sources and cancer risks apportionment.

Environ Pollut 2018 Dec 3;246:319-327. Epub 2018 Dec 3.

State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China; Department of Environmental Science and Engineering, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.

Levels, compositions, sources, and cancer risks of fine particle (PM)-bound PAHs were investigated at an urban site of Wuhan, Central China. Totally 115 PM samples collected during four seasons from 2014 to 2015 were analyzed for 16 USEPA priority PAHs. The annual average of PM and total PAHs were 106 ± 41. Read More

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December 2018

Urinary metals and leukocyte telomere length in American Indian communities: The Strong Heart and the Strong Heart Family Study.

Environ Pollut 2018 Dec 5;246:311-318. Epub 2018 Dec 5.

Area of Cardiometabolic and Renal Risk, Biomedical Research Institute Hospital Clinic of Valencia (INCLIVA), Valencia, Spain; Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, USA; Department of Chronic Diseases Epidemiology, National Center for Epidemiology, Carlos III Health Institutes, Madrid, Spain.

Introduction: While several mechanisms may explain metal-related health effects, the exact cellular processes are not fully understood. We evaluated the association between leukocyte telomere length (LTL) and urine arsenic (ΣAs), cadmium (Cd) and tungsten (W) exposure in the Strong Heart Study (SHS, N = 1702) and in the Strong Heart Family Study (SHFS, N = 1793).

Methods: Urine metal concentrations were measured using ICP-MS. Read More

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December 2018

Pu isotopes in the seawater off Fukushima Daiichi Nuclear Power Plant site within two months after the severe nuclear accident.

Environ Pollut 2018 Dec 7;246:303-310. Epub 2018 Dec 7.

National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 491 Anagawa, Inage, Chiba, 263-8555, Japan.

The marine environment is complex, and it is desirable to have measurements for seawater samples collected at the early stage after the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident to determine the impact of Fukushima-derived radionuclides on this environment. Here Pu isotopes in seawater collected 33-163 km from the FDNPP site at the very early stage after the accident were determined (May 2011, within two months after the accident). The distribution and temporal variation of Pu and Pu were studied. Read More

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December 2018
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Dispersion of gas flaring emissions in the Niger delta: Impact of prevailing meteorological conditions and flare characteristics.

Environ Pollut 2018 Dec 11;246:284-293. Epub 2018 Dec 11.

School of Geography, Earth and Environmental Sciences, University of Birmingham, B15 2TT, UK; Birmingham Institute of Forest Research (BIFoR), University of Birmingham, B15 2TT, UK.

An understanding of the dispersion and level of emissions source of atmospheric pollutants; whether point, area or volume sources, is required to inform policies on air pollution and day-to-day predictions of pollution level. Very few studies have carried out simulations of the dispersion pattern and ground-level concentration of pollutants emitted from real-world gas flares. The limited availability of official data on gas flares from the oil and gas industries makes accurate dispersion calculations difficult. Read More

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December 2018

Assessment of forest fire impacts on carbonaceous aerosols using complementary molecular marker receptor models at two urban locations in California's San Joaquin Valley.

Environ Pollut 2018 Dec 7;246:274-283. Epub 2018 Dec 7.

Department of Civil & Environmental Engineering, University of Wisconsin-Madison, Madison, 53705, USA; Environmental Chemistry and Technology, University of Wisconsin-Madison, Madison, 53706, USA. Electronic address:

Two hundred sixty-three fine particulate matter (PM) samples were collected over fourteen months in Fresno and Bakersfield, California. Samples were analyzed for organic carbon (OC), elemental carbon (EC), water soluble organic carbon (WSOC), and 160 organic molecular markers. Chemical Mass Balance (CMB) and Positive Matrix Factorization (PMF) source apportionment models were applied to the results in order to understand monthly and seasonal source contributions to PM OC. Read More

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December 2018

Parabens and triclosan in shellfish from Shenzhen coastal waters: Bioindication of pollution and human health risks.

Environ Pollut 2018 Dec 7;246:257-263. Epub 2018 Dec 7.

Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, Guangdong, PR China. Electronic address:

This work aimed to determine the concentrations of parabens and triclosan (TCS) in shellfish from coastal waters of Shenzhen, South China. A method of isotope dilution with high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was used to determine TCS and five paraben analogues, including methyl paraben (MeP), ethyl paraben (EtP), propyl paraben (PrP), butyl paraben (BuP), and benzyl paraben (BeP), in 186 shellfish samples covering eight species. Concentrations of parabens and TCS were 0. Read More

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December 2018

A potential source for PM: Analysis of fine particle generation mechanism in Wet Flue Gas Desulfurization System by modeling drying and breakage of slurry droplet.

Environ Pollut 2018 Dec 2;246:249-256. Epub 2018 Dec 2.

School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.

Aerosol particulate matter with dynamic diameter smaller than 2.5 μm (PM) is the main cause for haze pollution in China. As a dominant precursor of PM, SO emitted from industrial process is now strictly controlled by using limestone/gypsum Wet Flue Gas Desulfurization (WFGD) system in China. Read More

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December 2018

Variation in PFAA concentrations and egg parameters throughout the egg-laying sequence in a free-living songbird (the great tit, Parus major): Implications for biomonitoring studies.

Environ Pollut 2018 Dec 7;246:237-248. Epub 2018 Dec 7.

Behavioural Ecology and Ecophysiology Group, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610, Wilrijk, Belgium. Electronic address:

Over the past decades, there has been growing scientific attention and public concern towards perfluoroalkyl acids (PFAAs), due to their widespread presence in the environment and associations with adverse effects on various organisms. Bird eggs have often been used as less-invasive biomonitoring tools for toxicological risk assessments of persistent organic pollutants, including some PFAAs. Hereby, it is typically assumed that one random egg is representative for the PFAA concentrations of the whole clutch. Read More

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December 2018

Chemical characterization and source apportionment of PM personal exposure of two cohorts living in urban and suburban Beijing.

Environ Pollut 2018 Dec 4;246:225-236. Epub 2018 Dec 4.

College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China; CAS Center for Excellence in Regional Atmospheric Environment, Chinese Academy of Sciences, Xiamen, 361021, China. Electronic address:

In the study, personal PM exposures and their source contributions were characterized for 159 subjects living in the Beijing Metropolitan area. The exposures and sources were examined as functions of residential location, season, vocation, cigarette smoking, and time spent outdoors. Sampling was performed for two categories of volunteers, guards and students, that lived in urban and suburban areas of Beijing. Read More

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December 2018

Evidences of different meteorological patterns governing Be and Pb surface levels in the southern Iberian Peninsula.

J Environ Radioact 2018 Dec 14;198:1-10. Epub 2018 Dec 14.

Department of Integrated Sciences, Area of Applied Physics, University of Huelva, 21071, Huelva, Spain; Research Center on Natural Resources, Health and the Environment (RENSMA), University of Huelva, 21071, Huelva, Spain.

Be, Pb and PM levels in surface air have been simultaneously measured at two sampling sites in the southern Iberian Peninsula for a period of two years. Each site covers one different meteorological area of the Guadalquivir valley, from the mouth (Huelva) to the middle point (Cordoba). The objective of the present study is to analyse the spatial variability of both natural radionuclides, and to identify and characterise the meteorological patterns associated with similar and different surface concentration levels in this complex region. Read More

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December 2018

Flux modeling for monolignol biosynthesis.

Curr Opin Biotechnol 2018 Dec 14;56:187-192. Epub 2018 Dec 14.

State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695, United States. Electronic address:

The pathway of monolignol biosynthesis involves many components interacting in a metabolic grid to regulate the supply and ratios of monolignols for lignification. The complexity of the pathway challenges any intuitive prediction of the output without mathematical modeling. Several models have been presented to quantify the metabolic flux for monolignol biosynthesis and the regulation of lignin content, composition, and structure in plant cell walls. Read More

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December 2018

Extracellular polymeric substances of biofilms: Suffering from an identity crisis.

Water Res 2018 Nov 28;151:1-7. Epub 2018 Nov 28.

Department of Biotechcnology, Delft University of Technology, Delft, the Netherlands. Electronic address:

Microbial biofilms can be both cause and cure to a range of emerging societal problems including antimicrobial tolerance, water sanitation, water scarcity and pollution. The identities of extracellular polymeric substances (EPS) responsible for the establishment and function of biofilms are poorly understood. The lack of information on the chemical and physical identities of EPS limits the potential to rationally engineer biofilm processes, and impedes progress within the water and wastewater sector towards a circular economy and resource recovery. Read More

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November 2018

Oxidative damage induced by copper in testis of the red swamp crayfish Procambarus clarkii and its underlying mechanisms.

Aquat Toxicol 2018 Dec 6;207:120-131. Epub 2018 Dec 6.

Ecological Society of Shandong, Zhijinshi Jie 12, Jinan 250012, China; Shandong Institute of Environmental Science, Lishan Lu 50, Jinan 250013, China. Electronic address:

Copper (Cu) is one of the most widespread environmental pollutants and is known to exert multiple toxic effects including reproductive toxicity. In this study, we investigated the toxic effect of Cu on reproduction of the red swamp crayfish (Procambarus clarkii), an economic crustacean species, by exposing adult male crayfish to 0.03 and 3. Read More

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December 2018

QSAR for baseline toxicity and classification of specific modes of action of ionizable organic chemicals in the zebrafish embryo toxicity test.

Aquat Toxicol 2018 Dec 5;207:110-119. Epub 2018 Dec 5.

UFZ - Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318 Leipzig, Germany; Eberhard Karls University Tübingen, Center for Applied Geoscience, Environmental Toxicology Hölderlinstr. 12, 72074, Tübingen, Germany.

The fish embryo toxicity (FET) test with the zebrafish Danio rerio is widely used to assess the acute toxicity of chemicals thereby serving as animal alternative to the acute fish toxicity test. The minimal toxicity of neutral chemicals in the FET can be predicted with a previously published Quantitative Structure-Activity Relationship (QSAR) based on the liposome-water partition coefficient K. Such a QSAR may serve to plan toxicity testing and to evaluate whether an observed effect is caused by a specific mode of action (MoA). Read More

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December 2018

Predicting cadmium toxicity with the kinetics of phytochelatin induction in a marine diatom.

Aquat Toxicol 2018 Dec 11;207:101-109. Epub 2018 Dec 11.

Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China. Electronic address:

Phytochelatin (PC) synthesis is thought to be a rapid and specific response to metal exposure in marine phytoplankton, but its potential as a predictor of metal toxicity is far from conclusive. Thus this research examines the bioaccumulation, PC induction, and toxicity of Cadmium (Cd) in Thalassiosira weissflogii, a coastal diatom under varying nutrient conditions. Nitrogen limitation strongly inhibited Cd uptake and PC induction at the same [Cd] level, and increased metal sensitivity. Read More

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December 2018

Effects of transit signal priority on traffic safety: Interrupted time series analysis of Portland, Oregon, implementations.

Authors:
Yu Song David Noyce

Accid Anal Prev 2018 Dec 14;123:291-302. Epub 2018 Dec 14.

Department of Civil and Environmental Engineering, Traffic Operations and Safety Laboratory, University of Wisconsin-Madison, 1415 Engineering Dr. Rm. 2205, Madison, WI, 53706, United States. Electronic address:

Transit signal priority (TSP) has been implemented to transit systems in many cities of the United States. In evaluating TSP systems, more attention has been given to its operational effects than to its safety effects. Existing studies assessing TSP's safety effects reported mixed results, indicating that the safety effects of TSP vary in different contexts. Read More

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December 2018

Nutrient removal from high ammonium swine wastewater in upflow microaerobic biofilm reactor suffered high hydraulic load.

J Environ Manage 2018 Dec 14;233:69-75. Epub 2018 Dec 14.

State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, PR China.

To understand the ability of an upflow microaerobic biofilm reactor (UMBR) to remove nutrient from manure-free swine wastewater rich in NH with a COD/TN ratio less than 1.00, effect of hydraulic loading rate (HLR) on the microaerobic process was evaluated with a constant reflux ratio of 25 at 25 °C. The results showed that changes in HLR had a remarkable effect on the performance of the UMBR in nutrient removal from the wastewater. Read More

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December 2018

Perception of middle and low income communities on separation of household waste in the Caribbean region: A case study from Trinidad.

J Environ Manage 2018 Dec 13;233:63-68. Epub 2018 Dec 13.

Department of Civil and Environmental Engineering, University of West Indies, Trinidad and Tobago.

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December 2018

Inhibition of the photosynthetic activity of Synedra sp. by sonication: Performance and mechanism.

J Environ Manage 2018 Dec 13;233:54-62. Epub 2018 Dec 13.

Chongqing Landscape and Gardening Research Institute, Chongqing 401329, China.

The impacts of sonication on the photosynthetic activity of Synedra sp. (diatom) and its mechanism were investigated for the first time. Three photosynthetic parameters, i. Read More

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December 2018

Aggregation of chlorophyll a induced in self-assembled membranes composed of DMPC and DHPC.

Colloids Surf B Biointerfaces 2018 Dec 5;175:403-408. Epub 2018 Dec 5.

Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan. Electronic address:

The J-aggregate of chlorophyll a (Chla) functions as a light-harvesting antenna in natural systems. In this study, we employed the phospholipid membranes composed of longer-chain 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and shorter-chain 1,2-dihexanoyl-sn-glycero-3-phosphocholine (DHPC), as a platform to induce Chla aggregates. The DMPC/DHPC assembly at the mixing ratio (q) = 1. Read More

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December 2018

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

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

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

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

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

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

Enhanced histone H3K9 tri-methylation suppresses steroidogenesis in rat testis chronically exposed to arsenic.

Ecotoxicol Environ Saf 2018 Dec 14;170:513-520. Epub 2018 Dec 14.

Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China. Electronic address:

Arsenic poses a profound health risk including male reproductive dysfunction upon prolonged exposure. Histone methylation is an important epigenetic driver; however, its role in arsenic- induced steroidogenic pathogenesis remains obscure. In current study, we investigated the effect of histone H3K9 tri-methylation (H3K9me3) on expression pattern of steroidogenic genes in rat testis after long-term arsenic exposure. Read More

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December 2018

Metabolic perturbation, proliferation and reactive oxygen species jointly contribute to cytotoxicity of human breast cancer cell induced by tetrabromo and tetrachloro bisphenol A.

Ecotoxicol Environ Saf 2018 Dec 14;170:495-501. Epub 2018 Dec 14.

State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China. Electronic address:

Halogenated bisphenol A analogues (X-BPA) have been widely used in industrial production, such as flame retardant. Although BPA exposure was found to result in cytotoxicity, toxicity of X-BPA and molecular mechanism remain under-explored. In this study, we employed human breast cancer cell as a model to investigate the concentration-dependent toxicity and underlying mechanisms of tetrabromo bisphenol A (TBBPA) and tetrachloro bisphenol A (TCBPA). Read More

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December 2018

A mouse model for intellectual disability caused by mutations in the X-linked 2'‑O‑methyltransferase Ftsj1 gene.

Biochim Biophys Acta Mol Basis Dis 2018 Dec 14. Epub 2018 Dec 14.

Department of Functional Genomics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Felix-Hausdorff-Strasse 8, 17489 Greifswald, Germany.

Mutations in the X chromosomal tRNA 2'‑O‑methyltransferase FTSJ1 cause intellectual disability (ID). Although the gene is ubiquitously expressed affected individuals present no consistent clinical features beyond ID. In order to study the pathological mechanism involved in the aetiology of FTSJ1 deficiency-related cognitive impairment, we generated and characterized an Ftsj1 deficient mouse line based on the gene trapped stem cell line RRD143. Read More

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December 2018

DOX Loaded Aggregation-induced Emission (AIE) Active Polymeric Nanoparticles as Fluorescence Resonance Energy Transfer (FRET) Traceable Drug Delivery System for Self-indicating Cancer Therapy.

Acta Biomater 2018 Dec 14. Epub 2018 Dec 14.

College of Pharmaceutical Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, PR China. Electronic address:

In this study, an AIE-active polymer (FTP) was successfully prepared and employed to load anti-cancer drug doxorubicin (DOX) for self-indicating cancer therapy via dual FRET process. Our results demonstrated that the FTP polymer could self-assemble into nanoparticles (NPs) in aqueous solutions to give strong fluorescence emission via intramolecular FRET process. The DOX loaded FTP NPs (drug loading content: 21. Read More

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December 2018

Ambient ozone exposure and depressive symptoms in adolescents: Results of the GINIplus and LISA birth cohorts.

Environ Res 2018 Dec 7;170:73-81. Epub 2018 Dec 7.

Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, Ludwig Maximilian University of Munich; Comprehensive Pneumology Center (CPC) Munich, member DZL, German Center for Lung Research, Munich, Germany; Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia. Electronic address:

Background: Depression has been associated with air pollution, as reported by animal and epidemiological studies. However, the relationship between ozone exposure and depression, especially among adolescents, is scarcely investigated.

Objectives: The study aimed to analyze associations between ozone exposure and depressive symptoms among German adolescents. Read More

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December 2018
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Effects of ALAD genotype on the relationship between lead exposure and anthropometry in a Cohort of Mexican children.

Environ Res 2018 Dec 5;170:65-72. Epub 2018 Dec 5.

Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, State University of New York at Buffalo, Buffalo, NY, USA. Electronic address:

Objectives: Lead exposure is associated with children's growth, but this relationship may depend on the presence of susceptibility factors, including genetic variation. Blood lead levels (BLL) differ by ALAD (aminolevulinic acid dehydratase) genotype. We investigated the association between BLL and growth in Mexican first-graders with different ALAD genotypes. Read More

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December 2018

Relationships between indicators of cardiovascular disease and intensity of oil and natural gas activity in Northeastern Colorado.

Environ Res 2018 Dec 6;170:56-64. Epub 2018 Dec 6.

Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado, Aurora, CO, USA.

Background: Oil and natural gas (O&G) extraction emits pollutants that are associated with cardiovascular disease, the leading cause of mortality in the United States.

Objective: We evaluated associations between intensity of O&G activity and cardiovascular disease indicators.

Methods: Between October 2015 and May 2016, we conducted a cross-sectional study of 97 adults living in Northeastern Colorado. Read More

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December 2018

Household air pollution from biomass-burning cookstoves and metabolic syndrome, blood lipid concentrations, and waist circumference in Honduran women: A cross-sectional study.

Environ Res 2018 Dec 10;170:46-55. Epub 2018 Dec 10.

Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA. Electronic address:

Background: Household air pollution from cooking with solid fuels affects nearly 3 billion people worldwide and is responsible for an estimated 2.5 million premature deaths and 77 million disability-adjusted life years annually. Investigating the effect of household air pollution on indicators of cardiometabolic disease, such as metabolic syndrome, can help clarify the pathways between this widespread exposure and cardiovascular diseases, which are increasing in low- and middle-income countries. Read More

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December 2018

A systematic literature review and critical appraisal of epidemiological studies on outdoor air pollution and tuberculosis outcomes.

Environ Res 2018 Dec 7;170:33-45. Epub 2018 Dec 7.

School of Public Health, Faculty of Medicine, University of Queensland, Herston, Australia; Centre for Air Pollution, Energy and Health Research, Glebe, NSW, Australia.

Ambient air pollution is the leading environmental risk factor for disease globally. Air pollutants can increase the risk of some respiratory infections, but their effects on tuberculosis (TB) are unclear. In this systematic literature review, we aimed to assess epidemiological studies on the association between outdoor air pollutants and TB incidence, hospital admissions and death (collectively referred to here as 'TB outcomes'). Read More

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December 2018
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