Residues of Chlorinated Phenols and Phenoxy Acid Herbicides in the Urine of Arkansas Children
Overview
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Urine samples from 197 Arkansas children were analyzed for eight chlorinated phenols and four chlorinated phenoxy herbicides by using a new procedure that combined gas chromatography with tandem mass spectrometry. With the detection limit of 1 part per billion (ppb), six of these pesticides were detected in more than 10% of the samples. 2,5-Dichlorophenol (a metabolite of p-dichlorobenzene), and pentachlorophenol were detected in 96% and 100%, respectively, of the children's urine at median concentrations of 9 ppb and 14 ppb, respectively. 2,4,5-Trichlorophenol was detected in 54% of the children's urine at a median concentration of 1 ppb. One trichlorophenol and three other dichlorophenols were found in 3% to 27% of the samples. The herbicide 2,4-dichlorophenoxyacetic acid was observed in 20% of all samples. The concentrations of all analytes are reported as background or reference levels for use in future studies. The finding of 2,5-dichlorophenol as a ubiquitous contaminant merits further study.
Parastar S, Ebrahimpour K, Hashemi M, Maracy M, Ebrahimi A, Poursafa P Environ Sci Pollut Res Int. 2017; 25(5):4516-4523.
PMID: 29188597 DOI: 10.1007/s11356-017-0771-y.
Jeffries M, Gannon T, Brosnan J, Ahmed K, Breeden G PLoS One. 2016; 11(2):e0148992.
PMID: 26863005 PMC: 4749244. DOI: 10.1371/journal.pone.0148992.
Morgan M, Jones P, Sobus J Int J Environ Res Public Health. 2015; 12(1):800-15.
PMID: 25594782 PMC: 4306893. DOI: 10.3390/ijerph120100800.
Hernandez S, Wiener S, Smith S J Med Toxicol. 2010; 6(2):217-29.
PMID: 20373064 PMC: 3550295. DOI: 10.1007/s13181-010-0053-2.
Effects of occupational exposure to 1,4-dichlorobenzene on hematologic, kidney, and liver functions.
Hsiao P, Lin Y, Shih T, Chiung Y Int Arch Occup Environ Health. 2009; 82(9):1077-85.
PMID: 19247685 DOI: 10.1007/s00420-009-0398-5.