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As and Sb are more labile and toxic to water spinach (Ipomoea aquatica) in recently contaminated soils than historically co-contaminated soils
10.1039/C8EM00057C 2018-04-11 Elevated concentrations of As and Sb impact environmental quality and human health. In this study total and bioavailable As and Sb were measured from recently and historically contaminated soils and the phytotoxicity of these soils was evaluated with Ipomoea ... |
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Physiological changes in Chlamydomonas reinhardtii after 1,000 generations selection of cadmium exposure at environmentally relevant concentrations
10.1039/C8EM00106E 2018-04-11 Cadmium (Cd) is a nonessential and toxic trace element widely existed in waters through various anthropogenic activities such as mining and waste disposal. The physiological responses of aquatic organisms to long-term Cd exposure at environmentally relevant c... |
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Estimating system parameters for solvent–water and plant cuticle–water using quantum chemically estimated Abraham solute parameters
10.1039/C7EM00601B 2018-04-11 Polyparameter Linear Free Energy Relationships (pp-LFERs) using Abraham system parameters have many useful applications. However, developing the Abraham system parameters depends on the availability and quality of the Abraham solute parameters. Using Quantum ... |
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Galena weathering under simulated acid rain conditions: electrochemical processes and environmental assessments
10.1039/C7EM00599G 2018-04-08 Galena can be easily weathered under acid rain conditions and causes environmental issues. This process, in nature, is an electrochemical process. In-situ electrochemical technology and surface analysis technology were combined to investigate this weathering ... |
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Photodegradation of 2,4,4′-tribrominated diphenyl ether in various surfactant solutions: kinetics, mechanisms and intermediates
10.1039/C8EM00033F 2018-04-05 Currently, photodegradation has been proven to be an important way of eliminating polybrominated diphenyl ethers (PBDEs) from the environment. However, the mechanism of PBDE photodegradation in surfactants by UV light is still unclear. In this study, 2,4,4′-t... |
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Mining legacy across a wetland landscape: high mercury in Upper Peninsula (Michigan) rivers, lakes, and fish
10.1039/C7EM00521K 2018-03-29 A geographic enigma is that present-day atmospheric deposition of mercury in the Upper Peninsula of Michigan is low (48%) and that regional industrial emissions have declined substantially (ca. 81% reduction) relative to downstate. Mercury levels should be de... |
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Effects of room airflow on accurate determination of PUF-PAS sampling rates in the indoor environment
10.1039/C8EM00082D 2018-03-27 Accurate and precise interpretation of concentrations from polyurethane passive samplers (PUF-PAS) is important as more studies show elevated concentrations of PCBs and other semivolatile air toxics in indoor air of schools and homes. If sufficiently reliable... |
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A novel method for source-specific hemoglobin adducts of nitro-polycyclic aromatic hydrocarbons
10.1039/C7EM00522A 2018-03-21 Polycyclic aromatic hydrocarbons (PAH) are ubiquitous air pollutants associated with negative impacts on growth, development and behavior in children. Source-specific biological markers of PAH exposure are needed for targeting interventions to protect childre... |
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Comparing winter-time herbicide behavior and exports in urban, rural, and mixed-use watersheds
10.1039/C7EM00596B 2018-03-16 The presence of pesticides in streams in winter, five to six years following bans on their municipal use suggests that complicated transport behaviour, such as subsurface retention and/or accumulation of pesticides and its release during storms, could be impo... |
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Oxidative removal of quinclorac by permanganate through a rate-limiting [3 + 2] cycloaddition reaction
10.1039/C8EM00024G 2018-03-13 Quinclorac, a widely used herbicide in agriculture, has been recognized as an emerging environmental pollutant owing to its long persistence and potential risk to humans. However, no related information is available on the degradation of quinclorac by employi... |