Aprea_1997_J.Toxicol.Environ.Health_50_581

Reference

Title : Biological monitoring of exposure to chlorpyrifos-methyl by assay of urinary alkylphosphates and 3,5,6-trichloro-2-pyridinol - Aprea_1997_J.Toxicol.Environ.Health_50_581
Author(s) : Aprea C , Sciarra G , Sartorelli P , Sartorelli E , Strambi F , Farina GA , Fattorini A
Ref : J Toxicol Environ Health , 50 :581 , 1997
Abstract :

The results of biological monitoring by assay of urinary 3,5,6-trichloro-2-pyridinol and alkylphosphates (DMP, DMTP) in groups of 9 and 2 workers exposed to chlorpyrifos-methyl during vine spraying and manual leaf thinning 5-11 d after spraying, respectively, are reported. The results are compared with those of a control group of 46 subjects not occupationally exposed to organophosphate insecticides. Significantly higher urinary excretion of metabolites (Mann-Whitney U-test) was found in both groups than in controls. Levels of 3,5,6-trichloro-2-pyridinol (mean +/- SD) were 15.9 + 10.6 nmol/g creatinine (n = 33) for controls, 92.4 + 162.5 nmol/g creatinine (n = 20) for manual workers, and 675.5 + 1110.8 nmol/g creatinine (n = 48) for workers spraying and mixing the insecticide. Levels of DMP (mean +/- SD) were 63.8 + 100.1 nmol/g creatinine (n = 42), 123.0 + 79.0 nmol/g creatinine (n = 20), and 577.2 + 1003.2 nmol/g creatinine (n = 61), respectively, for the same 3 groups. Levels of DMTP (mean +/- SD) were 153.4 + 164.4 nmol/g creatinine (n = 43), 489.3 + 288.3 nmol/g creatinine (n = 20), and 297.6 + 215.4 nmol/g creatinine (n = 61), respectively, for the same 3 groups. Good correlations were found between urinary excretion of 3,5,6-trichloro-2-pyridinol and DMP (r = .776 for manual workers; r = .775 for workers mixing and spraying the insecticide) or DMTP (r = .558 and r = .746, respectively for the same 2 groups). The peak of excretion of the three metabolites was found in urine samples collected the night after the spraying or leaf thinning operations.

PubMedSearch : Aprea_1997_J.Toxicol.Environ.Health_50_581
PubMedID: 15279031

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Citations formats

Aprea C, Sciarra G, Sartorelli P, Sartorelli E, Strambi F, Farina GA, Fattorini A (1997)
Biological monitoring of exposure to chlorpyrifos-methyl by assay of urinary alkylphosphates and 3,5,6-trichloro-2-pyridinol
J Toxicol Environ Health 50 :581

Aprea C, Sciarra G, Sartorelli P, Sartorelli E, Strambi F, Farina GA, Fattorini A (1997)
J Toxicol Environ Health 50 :581