PMID: 8584918Jan 5, 1996Paper

Urinary excretion of alkylphosphates in the general population (Italy)

The Science of the Total Environment
C ApreaE Sartorelli

Abstract

Xenobiotic residues and their metabolites in biological fluids of the general population are an important indicator of exposure to toxic substances dispersed in the environment. Urine samples collected from 124 subjects living in SW Tuscany, Italy were analyzed for alkylphosphates (dimethylphosphate, dimethylthiophosphate, dimethyldithiophosphate, diethylphosphate, diethylthiophosphate, diethyldithiophosphate), aspecific metabolites of organophosphorus insecticides. The compound most frequently found was dimethylthiophosphate which was detectable in 99% of the subjects analyzed, with a geometric mean of 70.7 nmol/g creatinine. The other substances were found in the following percentages of our population, at the following mean concentrations: dimethylphosphate, 87%, 62.8 nmol/g creat.; dimethyldithiophosphate, 48%, 21.1 nmol/g creat.; diethylphosphate, 81%, 27.4 nmol/g creat.; diethylthiophosphate, 73%, 22.8 nmol/g creat.; diethyldithiophosphate, 7%, 13.7 nmol/g creatinine. Subjects eating food (fruit, meat, vegetables) that was not their own produce showed higher urinary concentrations of nearly all the compounds. The other variables considered (sex, age, residence, alcohol, smoking, sampling period) seem to affect the percent...Continue Reading

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Oct 25, 2001·American Journal of Industrial Medicine·P K Mills, S H Zahm
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