DDT RESIDUES IN RAINWATER IN NEW-BRUNSWICK AND ESTIMATE OF AERIAL TRANSPORT OF DDT INTO GULF OF ST-LAWRENCE, 1967-68

  • 1 January 1978
    • journal article
    • research article
    • Vol. 11  (4) , 199-204
Abstract
Residues of DDT were detected in 76 of 101 samples of rainwater collected during spring and summer at several sites in the Province of New Brunswick in 1967 and 1968, and at 1 site in the Magdalen Islands, Quebec, in 1968. The dominant residue was p,p''-DDT. Levels of DDT and metabolites combined ranged from < 0.01-1.33 .mu.g/kg. Levels of DDT and metabolites in the pollen of 4 species of forest trees in New Brunswick ranged from 0.544-1.01 mg/kg; such contaminated pollen possibly contributed to residues in rainwater. Residue data for rainwater from 2 sites were used to estimate the amount of DDT aerially transported into the Gulf of St. Lawrence during July to October 1968.

This publication has 2 references indexed in Scilit: