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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]
The Environmental Protection Agency (EPA) has published a list of "extremely hazardous substances (EHS)." For each EHS, the list includes the name, the Chemical Abstract Service number of the substance, and a number called a threshold planning quantity (TPQ). The TPQ, expressed in pounds, is the critical number.
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.
The result of the move request was: consensus to move the page to EPA list of extremely hazardous substances at this time, per the discussion below. Dekimasu よ! 14:50, 22 January 2020 (UTC) List of extremely hazardous substances → ? – Per WP:GLOBAL. The current title does not reflect the fact that the list is exclusively based on laws and ...
The Environmental Protection Agency (EPA) regulates hazardous materials as they may impact the community and environment, ... List of Extremely Hazardous Substances;
Feb. 3—SANTA FE — The U.S. Environmental Protection Agency on Thursday announced two proposed rules "to ensure that certain per- and polyfluoroalkyl substances (PFAS), also known as 'forever ...
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The Environmental Protection Agency on Friday designated two forever chemicals that have been used in cookware, carpets and firefighting foams as hazardous substances, an action intended to ensure ...