Distribution of pesticides, PAHs, PCBs, and bioavailable metals in depositional sediments of the lower Missouri River, USA

Archives of Environmental Contamination and Toxicology
Kathy R EcholsPaul H Peterman

Abstract

The lower Missouri River was studied to determine the distribution of selected persistent organic pollutants and bioavailable metals in depositional sediments. Nineteen sites between Omaha, Nebraska and Jefferson City, Missouri were sampled. This stretch of the river receives point-source and non-point-source inputs from industrial, urban, and agricultural activities. As part of an ecological assessment of the river, concentrations of 29 legacy organochlorine pesticides (OC pesticides), including chlordanes, DDTs, and hexachlorocyclohexanes; a select list of current-use pesticides, including trifluralin, diazinon, chlorpyrifos, and permethrin, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), divalent metals (copper, nickel, zinc, cadmium, and lead), and polybrominated diphenyl ethers (PBDEs) were determined. Concentrations (dry weight basis) of OC pesticides in the sediments were less than 1 ng/g, with the exception of the backwater sediment collected from the mouth of the Blue River in the Kansas City metropolitan area, which contained up to 20 ng/g total chlordane, 8.1 ng/g p,p'-DDE, 1.5 ng/g lindane, 4.8 ng/g dieldrin, and 3 ng/g endrin. Concentrations of chlorpyrifos and permethrin ranged from less...Continue Reading

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Citations

Nov 7, 2012·Archives of Environmental Contamination and Toxicology·Lisa H NowellPatrick J Phillips
Jan 1, 2010·Journal of Environmental Sciences (China)·Hui XieBo Shao
Dec 17, 2009·The Science of the Total Environment·Karen A BlocksomDavid W Bolgrien
Oct 27, 2015·Journal of Environmental Management·Jong-Oh KimJinwook Chung
Jun 24, 2014·Risk Analysis : an Official Publication of the Society for Risk Analysis·Eric P HookerHerman J Gibb
Sep 8, 2010·Environmental Toxicology and Chemistry·Fen HuMeirong Zhao
Jul 2, 2019·Journal of Health & Pollution·John P UnyimaduJoshua O Babayemi
May 18, 2019·The Science of the Total Environment·Emily BoulangerJessica A Head

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