The Environmental Protection Agency's Brownfields Cleanup and Redevelopment Web site offers a wide array of helpful information and data on the extensive hazardous site cleanup program. Besides up-to-date news and stories, visitors will find official definitions of Brownfields, information on grants, laws and regulations, publications, and more. Perhaps the most helpful to professionals would be...

This special feature page from the American Chemical Society (ACS) showcases the up-and-coming field of "green chemistry," that is, the development of chemical products and processes that eliminate or reduce the use and generation of hazardous substances. A list of principles behind green chemistry, a searchable bibliography of green chemistry references, green chemistry links (including...