Hazardous Substance: Any material that poses a threat to human health or the environment. Typical hazardous substances are toxic, corrosive, ignitable, explosive, or chemically reactive.
Extremely Hazardous Substances (EHS): Any of 366 (+ or:) chemicals or hazardous substances identified by EPA on the basis of hazard or toxicity and listed under EPCRA. The list is periodically revised.
There are no items in this category.
Hazardous Substance Release and Health Effects Database (HazDat)
The scientific and administrative database system developed by ATSDR to manage data collection, retrieval, and analysis of site-specific information on hazardous substances, ...
Hazardous Substance: A material including its mixtures and solutions that is listed in the 172.
H hazardous substance
Definition (english only)
Hazardous substance means substances or group of substances that are toxic, persistent and liable to bio-accumulate, ...
Extremely Hazardous Substances- Any of 406 chemicals identified by EPA as toxic, and listed under SARA Title III. The list is subject to periodic revision.
Extremely Hazardous Substances: Any of 406 chemicals identified by the Environmental Protection Agency as toxic, and listed under SARA Title III (the Superfund Amendments and Reauthorization Act). The list is subject to periodic revision.
Site where a hazardous substance is treated, stored, or disposed of. TSD facilities are regulated by EPA and states under RCRA.
Tremie
Device used to place concrete or grout under water.
Quantity of a hazardous substance that triggers reports under CERCLA. If a substance exceeds its RQ, the release must be reported to the National Response Center, the SERC, and community emergency coordinators for areas likely to be affected.
Levels to which hazardous substances on the site will be cleaned up. These target levels are health-based, meaning that exposure to the hazardous substances at or below the target is not expected to present a significant health risk.
Heavy metals ...
National Oil and Hazardous Substances Contingency Plan (NOHSCP/NCP): The federal regulation that guides determination of the sites to be corrected under both the Superfund program and the program to prevent or control spills into surface waters ...
consumers use purchasing decisions to communicate to product manufacturers that they prefer environmentally sound products packaged with the least amount of waste, made from recycled or recyclable materials, and containing no hazardous substances ...
National Contingency Plan or NCP A plan designed to ensure that resources and expertise of the US federal government will be available in the event of serious oil spills and hazardous substance releases.
A site-specific risk assessment of the actual or potential danger to human health or welfare and the environment from the release of hazardous substances or waste.
Certain plants are able to extract hazardous substances such as arsenic, lead and uranium from soil and water. One example is alpine pennycress (Brassicaceae), a plant which naturally accumulates high levels of cadmium and zinc from the environment.
CONTAMINATED LAND Contaminated land is land that is polluted or poisoned by toxic or hazardous substances. Land can be contaminated in different ways.
Estimate of the daily human exposure to a hazardous substance that is likely to be without appreciable risk of adverse noncancer health effects over a specified duration of exposure: this substance specific estimate is used by ATSDR health assessors ...
industrial source reduction Practices that reduce the amount of any hazardous substance, pollutant, or contaminant entering any waste stream or otherwise released into the environment.
Signal Word: warning required by the Federal Hazardous Substances Act of 1960 to be used on the label of a hazardous substance. Examples include DANGER, WARNING, CAUTION, and POISON.
Threshold Planning Quantity: A quantity designated for each chemical on the list of extremely hazardous substances that triggers notification by facilities to the State Emergency Response Commission that such facilities are subject to emergency ...
Hazardous waste
waste that originates from a specified waste stream or has hazardous properties or contains hazardous substances as defined in the Hazardous Waste Directive ...
Sanitary landfill: Landfill that is lined with plastic or concrete or located in clay-rich soils to prevent hazardous substances from leaking into the environment.
Non-liquid, non-soluble materials ranging from municipal garbage to industrial wastes that contain complex and sometimes hazardous substances.
Solid Waste Disposal
The final placement of refuse that is not salvaged or recycled.
and landfills, and may result in hazardous substances
entering surface water, ground water, or soil.
leaching. The process by which soluble substances are ...
For example, NIOSH recommends guidelines for workplace exposure to hazardous substances and has published criteria documents on many chemicals. National Institutes of Health (NIH) NIH, part of the U.S.
 See also: Hazard, Environment, Waste, Air, Water
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