Hazardous substances, liquid or solid

Environmentally hazardous substance, liquid, n.o.s., 9 Environmentally hazardous substance, solid, n.o.s., 9 Hazardous substances, liquid or solid, n.o.s. 

Many substances of all hazard classes can affect the environment by polluting air, water, and land and causing physiological damage to human, animal, and plant life. The extraction of raw materials and use of their derivatives modifies the balance of the earth s ecosystems. 

The United States Comprehensive Environmental Response, Compensation, and Liability Act of 1980, CERCLA (Superfund) as amended (42 USC 9601 et seq) requires that hazardous substances be listed and regulated as hazardous materials in transportation. The responsibility for identifying hazardous substances lies with the U.S. Environmental Protection Agency (EPA) which lists over 2000 hazardous substances and radionuclides in 40CFR302.4. As the EPA conducts its regulatory activities, new substances are added while others are removed. 

Department of Transportation (DOT) reproduces the EPA s list in 49CFR172.101. The list includes reportable quantities (RQs) which indicate the amount of a hazardous substance which if released to the environment triggers the reporting, spill cleanup, and financial responsibility elements of CERCLA. 

but not all, hazardous substances are already covered by chemical name or generic entry on the lists of regulated dangerous goods in transportation, for example, methanol, sodium cyanide, and methyl chloroform each appear under their chemical names in both the DOT S List of Hazardous Substances and Reportable Quantities and on the United Nations Dangerous Goods List. If no entry is appropriate, and if they are not hazardous wastes, the DOT requires that hazardous substances be shipped under the entry environmentally hazardous substances.  

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