Toxic waste: Dutch dumps

Psychosocial impact of toxic chemical waste dumps.

On the basis of three years' intensive observation of the community and interactions at the Love Canal in Niagara Falls, NY, the present study addresses the psychosocial problem of creating and maintaining trust between the residents of an area contaminated by toxic waste materials and the government-sponsored scientific researchers and other health professionals who worked and studied there (t...

Problems and prospects in the utilization of cytogenetics to estimate exposure at toxic chemical waste dumps.

In mammalian cells, one of the most sensitive indicators of exposure to mutagenic carcinogens has been the induction of cytogenetic effects, chromosome aberrations and sister chromatid exchanges (SCEs). Some mutagens, such as ionizing radiations that induce double-strand breaks in DNA are very efficient at inducing chromosome aberrations and can induce them at all stages of the cell cycle. Some...

Field epidemiologic studies of populations exposed to waste dumps.

Epidemiologic studies are required for assessing health risks related to toxic waste exposure. Since the settings in which such studies must be performed are extremely diverse, epidemiologic approaches must be versatile. For any particular study, three fundamental requirements are to assess what toxic materials are present, understand how human exposure may occur, and objectively measure possib...

Transparency and Toxic Waste: State Decisions to Report and Import Toxic Waste

Toxic waste disposal in Escherichia coli.

About 10% of the nalidixic acid-resistant (Nal(r)) mutants in a transposition-induced library exhibited a growth factor requirement as the result of cysH, icdA, metE, or purB mutation. Resistance in all of these mutants required a functional AcrAB-TolC efflux pump, but the EmrAB-TolC pump played no obvious role. Transcription of acrAB was increased in each type of Nal(r) mutant. In the icdA and...