Residues on pastures treated with various forms of DDT

Decline of DDT residues in migratory songbirds.

Analyses of ten species of migratory songbirds killed when the birds flew into television towers in Florida showed a progressive decline in the concentration of DDT and its metabolites (DDD and DDE) in their fat depots for the period 1964 to 1973. This decline is apparently correlated with the decreased usage of DDT in the United States during the same time.

Review on DDT and its residues in Turkey's wetlands.

Turkey is a country rich in wetlands (250 wetlands, approximately one million hectares). As it is in many countries, the wetlands in Turkey are threatened by the agricultural activities, loss of habitats due to these activities and by pesticide contamination. After 1940, large quantities of pesticides, especially DDT were used intensively against mosquitoes and pests in most of the wetlands in ...

Pesticide residues in food 2000 : DDT

Interactive Effects of Salinity and Cadmium Pollution on Enzyme Activity in a Calcareous Soil Treated With Plant Residues

Abiotic stresses such as salinity and contamination individually have a negative effect on the soil enzyme activities, whereas addition of organic matter to soil can alleviate the negative impacts of stresses on the enzyme activity. However, the combined effects of these stresses (multiple stresses) on soil biochemical conditions and the role of organic matter addition in these interactions are...

Intensive studies of DDT residues in forest soil.

Approximately 6,000 tons of technical DDT were sprayed over i0 million acres of forest land around New Brunswick (N.B.), Canada, between 1952 and 1968, as part of the regional spruce budworm (Choristoneura fumiferana Clemens) control program (MACDONALD, 1966). Intensive ecological research on DDT in the forest environment has been concentrated around the Priceville area of Central N.B. since 19...