Tested pesticides

Mutagenicity list, 23 114 Mutagenicity test battery, 25 221 Mutagenicity testing, pesticide-related, 25 548-549... 

The study was conducted to evaluate in situ sedimentation as an abatement procedure. DDT was chosen as the test pesticide since it is a persistent, water-insoluble compound that has created difficult disposal problems and since a contaminated site exists in Alabama where DDT residues estimated to exceed 500 tons have been found in the bottom sediment of a 3-mile stream segment. 

Methods commonly used to obtain sorption coefficients require the moisture in the soils to be above field capacity so that the aqueous phase containing the test pesticide can be separated from the soil. Using the slurry technique, most research has focused on the effects of the soiksolution ratio on sorption (Table 21.7). There has been little research on the effect of soil moisture. 

Stenersen, J. (1979) Action of pesticides on earthworms. Part I The toxicity of cholinesterase-inhibiting insecticides to earthworms as evaluated by laboratory tests. Pesticide Science, 10, 66-74. 

Residue analysis is very expensive and requires much skill. Even more skill is needed to interpret the health aspect of minor residues of approved and well-tested pesticides. Analytical chemistry has become so advanced that almost anything can be found in minute concentrations. Social courage is needed to say explicitly that, even when the legal residue limits are exceeded, residues are not necessarily a health hazard. The residues may be regarded as "invisible rubbish" that should be kept as low as possible, even when no hazard is to be expected. 

Activated charcoal, protection from herbicide action, 50 Activated sludge systeiss, disadvantage, 172 Acute tests, pesticides, 342 Adjuvants, function, 233 Adoption theory, operators likely to Implement technology, 256 Advanced Genetic Sciences Company (AGS), 320... 

The first calculation of LD50 was published in 1963 [19]. The American authors used leafcutting bees as test insects. They applied acetone dilutions of various compounds on the abdomen of anesthetized bees. They found that M. wtundata was more susceptible to three of the tested pesticides than honey bees, and less susceptible to two of them, including carbaryl. 

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