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. 1970 Oct 2;170(3953):71-3.
doi: 10.1126/science.170.3953.71.

DDT residues in marine phytoplankton: increase from 1955 to 1969

J L Cox

DDT residues in marine phytoplankton: increase from 1955 to 1969

J L Cox. Science. .

Abstract

Phytoplankton samples collected in Monterey Bay, California, from 1955 to 1969 contained compounds identified as p,p'-DDT, p,p'-DDD, and p,p'-DDE. Total concentrations of these compounds were approximately three times greater in the later samples. Lower concentrations throughout the period were associated with higher densities of standing crop.

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