EPA softens stand on controversial contaminated sediment standards

Article Abstract:

Environmental officials in the US are considering the adoption of sediment quality criteria (SQC) in an effort to alleviate long standing problems regarding the contamination of fresh and marine water resources. The move was made after a number of site-specific studies revealed that the implementation of a nationwide set of standards is highly necessary. The agency's move is based primarily on the concept of theory of equilibrium partitioning, which states that the level of sediment concentrations in organic carbon and water bodies are in a state of equilibrium.

Water Pollution Control, Standards, Laws, regulations and rules, Sediment control, Water pollution

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Analyzing chemical toxicity in 3-D on the Web

Article Abstract:

Environmental Protection Agency's National Health and Environmental Effects Research Division and National Environmental Supercomputing Center are developing a World Wide Web site aimed at providing toxicologists with 3-dimensional information on about 600 compounds that are believed to be representative of the chemicals used in industrial production. The EPA Web site, which is set to open in late 1997, will feature detailed 3-dimensional chemical structures, mostly of the toxic class of electrophilic compounds found in the aquatic environment.

On-Line Information Services, Telegraph & other communications, Chemical Manufacturing, Air, water, & solid waste management, Environmental Protection Agency, Videotex & Teletext Svcs NEC, Toxic Chemical Wastes, Usage, Internet services, Online information services, Information services, World Wide Web, Hazardous wastes, Toxicological chemistry, Chemical wastes

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States turning to voluntary programs to sped cleanups

Article Abstract:

Pennsylvania and Michigan recently became the latest states to adopt voluntary cleanup laws designed to promote the cleanup and redevelopment of contaminated areas. Voluntary cleanup is steadily becoming the alternative of choice for many state governments since it is non-confrontational, allows financing flexibility and provides some measure of protection against future liability.

Pollution Control NEC-State, Michigan, Environmental policy, Pollution control, Pennsylvania

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