Technical Papers

Comparative Toxicity of DDT Isomers and Related Compounds to Mosquito Larvae and Fish

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Science  28 Feb 1947:
Vol. 105, Issue 2722, pp. 233-234
DOI: 10.1126/science.105.2722.233


The p, p'-DDT isomer is several times as toxic as the o,p'-DDT isomer to both goldfish and mosquito larvae. The methoxy analogue equals DDT in toxicity to fish, but is less toxic to mosquito larvae. On the other hand, the DDD analogue ranks about as high as DDT in toxicity to mosquito larvae, but appears to be less toxic to goldfish.