Expanded Target-Chemical Analysis Reveals Extensive Mixed-Organic-Contaminant Exposure in U.S. Streams
Paul M. Bradley,Celeste A. Journey,Kristin M. Romanok,Larry B. Barber,Herbert T. Buxton,William T. Foreman,Edward T. Furlong,Susan T. Glassmeyer,Michelle L. Hladik,Luke R. Iwanowicz,Daniel K. Jones,Dana W. Kolpin,Kathryn M. Kuivila,Keith A. Loftin,Marc A. Mills,Michael T. Meyer,James L. Orlando,Timothy J. Reilly,Kelly L. Smalling,Daniel L. Villeneuve +19 more
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TLDR
Log10 concentrations of widely monitored HHCB, triclosan, and carbamazepine explained 71-82% of the variability in the total number of compounds detected, providing a statistical inference tool for unmonitored contaminants.Abstract:
Surface water from 38 streams nationwide was assessed using 14 target-organic methods (719 compounds). Designed-bioactive anthropogenic contaminants (biocides, pharmaceuticals) comprised 57% of 406 organics detected at least once. The 10 most-frequently detected anthropogenic-organics included eight pesticides (desulfinylfipronil, AMPA, chlorpyrifos, dieldrin, metolachlor, atrazine, CIAT, glyphosate) and two pharmaceuticals (caffeine, metformin) with detection frequencies ranging 66–84% of all sites. Detected contaminant concentrations varied from less than 1 ng L–1 to greater than 10 μg L–1, with 77 and 278 having median detected concentrations greater than 100 ng L–1 and 10 ng L–1, respectively. Cumulative detections and concentrations ranged 4–161 compounds (median 70) and 8.5–102 847 ng L–1, respectively, and correlated significantly with wastewater discharge, watershed development, and toxic release inventory metrics. Log10 concentrations of widely monitored HHCB, triclosan, and carbamazepine explain...read more
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Occurrence, removal and risk of organic micropollutants in wastewater treatment plants across China: Comparison of wastewater treatment processes.
TL;DR: An overall picture about the current status of MPs in WWTPs across China is drawn and provides useful information for better control of the risks associated with MPs.
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Screening hundreds of emerging organic pollutants (EOPs) in surface water from the Yangtze River Delta (YRD): Occurrence, distribution, ecological risk.
TL;DR: Investigation of the complexity and diversity of EOPs in surface water from 28 sampling sites in the Yangtze River Delta found that hazard quotients of dimethyldioctadecylam monium, didecyldimethylammonium and octocrylene were higher than one and occur frequently, which indicates possibly adverse effects on fish species in the YRD area.
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Occurrence, control and fate of contaminants of emerging concern in environmental compartments in Brazil.
TL;DR: Data gathered indicated that caffeine, paracetamol, atenolol, ibuprofen, cephalexin and bisphenol A occur in the μg L-1 range in streams near urban areas, and endocrine disruptors are frequently detected in surface waters, highest concentrations account for 17α-ethynylestradiol and 17β-estradio.
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Simultaneous removal of pollutants from water using nanoparticles: A shift from single pollutant control to multiple pollutant control.
TL;DR: Nanotechnology is showcased as a promising and an environmentally-friendly way to solve the limitations of current and conventional centralised water and wastewater treatment facilities but is also presented as a good substitute or supplement in areas without those facilities.
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Glyphosate detection: methods, needs and challenges
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