ILO Home
Go to the home page
Site map | Contact us Franēais | Espańol

CISDOC database

Document ID (ISN)32044
CIS number 79-1623
ISBN(s) 91-7464-050-6
Year 1979
Convention or series no.
Author(s) Hedman B.K., Erne K., Håkansson M., Engqvist A.
Title Occupational exposure monitoring of phenoxy acids (2,4-D and 2,4,5-T)
Original title Kontroll av yrkesmässig exponering för fenoxisyror (2,4-D och 2,4,5-T) [in Swedish]
Bibliographic information Arbete och hälsa - Vetenskaplig skriftserie 1979:17, Arbetarskyddsverket, Fack, 100 26 Stockholm, Sweden, 1979. 26p. Illus. 21 ref.
Abstract 2,4-D and 2,4,5-T levels in plasma and urine of 4 spraymen in forestry work were monitored during a week of exposure and for 36h afterwards. Plasma levels ranged from the detection limit to 0.1-0.2µg/ml, and declined to near the detection limit overnight. The highest levels were in urine with means of 8 and 4.5µg/ml for 2,4-D and 2,4,5-T, respectively, and 3-14µg/ml and 1-11µg/ml, respectively, in the afternoon after a day of exposure. In another investigation, the mean 24h excretion in urine was 9mg 2,4-D and 1mg 2,4,5-T. None of the spraymen had clinical symptoms except one who showed a slight irritation of the eyes after direct contact with the spray liquid. Exposure to the substances could be best followed by determination of urine levels. Sampling should be in the afternoon of an exposed day or within a day following exposure. The lowest detectable concentration in urine is 0.05µg/ml for both substances. English summary.
Descriptors (primary) herbicides; forestry; exposure tests; trichlorophenoxyacetic acid; dichlorophenoxyacetic acid
Descriptors (secondary) crop protection; urine monitoring; blood monitoring
Document type E - Books, reports, proceedings
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Agricultural chemicals
Biological monitoring
Forestry and logging