Search results
Results from the WOW.Com Content Network
This is the list of extremely hazardous substances defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. § 11002). The list can be found as an appendix to 40 CFR 355. [1] Updates as of 2006 can be seen on the Federal Register, 71 FR 47121 (August 16, 2006). [2]
Pages in category "Lists of ecoregions in the United States" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes .
List of freshwater ecoregions (WWF), 426 freshwater ecoregions. Lists of ecoregions by country; Lists of ecoregions by continent. List of ecoregions in Africa; List of ecoregions in Antarctica; List of ecoregions in Australia; List of ecoregions in Europe; List of ecoregions in North America. List of ecoregions in North America (CEC)
Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.
As of June 6, 2024, there were 1,340 Superfund sites in the National Priorities List in the United States. [2] Thirty-nine additional sites have been proposed for entry on the list, and 457 sites have been cleaned up and removed from the list. [2] New Jersey, California, and Pennsylvania have the most sites. [3]
In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified by similarities in geology , physiography , vegetation , climate , soils , land use , wildlife distributions, and hydrology .
This is a list of Superfund sites in Maine designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations. [1]
The following is a list of chemicals published as a requirement of Safe Drinking Water and Toxic Enforcement Act of 1986, commonly known as California Proposition 65, that are "known to the state to cause cancer or reproductive toxicity" as of January 3, 2020. [1]