
Hazardous waste is waste that poses substantial or potential threats to public health or the environment. In the United States, the treatment, storage and disposal of hazardous waste is regulated under the Resource Conservation and Recovery Act (RCRA). Hazardous wastes are defined under RCRA in 40 CFR 261 where they are divided into two major cate...
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http://en.wikipedia.org/wiki/Hazardous_waste

(from the article `environmental works`) ...People living in homes built near old and abandoned waste disposal sites may be in a particularly vulnerable position. In an effort to remedy ... [2 related articles]
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http://www.britannica.com/eb/a-z/h/26

A substance that is potentially damaging to the environment and harmful to humans and other living organisms.
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http://www.encyclo.co.uk/local/20453

Waste that has hazardous properties that may render it harmful to human health or the environment, eg batteries, oils and oil filters, paint and ink, chemical waste, solvents. The term special waste is used in Scotland but has the same meaning.
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http://www.encyclo.co.uk/local/20546

the definition of hazardous waste in the UK has always been debated. Usually referred to as 'special waste', it has been controlled in the UK under the special waste regulations 1996. These were reviewed in 2001, because the definition of special waste failed to meet the requirements of the EC Directive on hazardous waste. Hazardous / special waste...
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http://www.encyclo.co.uk/local/20571

: See Special waste. Defined by EU legislation as the most harmful wastes to people and the environment.
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http://www.encyclo.co.uk/local/20870

Waste products which, upon release into the atmosphere, water or soil, cause health risks to humans or animals through skin contact, inhalation or ingestion. Hazardous waste sites which contain hazardous waste substances go here. ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973

Refuse that could present dangers through the contamination and pollution of the environment. It requires special disposal techniques to make it harmless or less dangerous.
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http://www.encyclo.co.uk/local/21291

Potentially harmful substances that have been released or discarded into the environment.
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http://www.encyclo.co.uk/local/22412

Waste that is reactive, toxic, corrosive, or otherwise dangerous to living things and/or the environment. Many industrial by-products are hazardous.
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http://www.encyclo.co.uk/visitor-contributions.php

Waste with the potential to cause severe damage to the environment
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http://www.encyclo.co.uk/visitor-contributions.php

waste that originates from a specified waste stream or has hazardous properties or contains hazardous substances as defined in the Hazardous Waste Directive
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http://www.oasisenviro.co.uk/Glossary%20F%20to%20M.htm

Wastes identified in the Hazardous Waste and List of Wastes Regulations 2005
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http://www.roadsafeeurope.com/useful_info/Glossary

garbage that may be harmful to the environment
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https://sciencetrek.org/sciencetrek/topics/garbage/glossary.cfm

By-products of society that can pose a substantial or potential hazard to human health or the environment when improperly managed. Possesses at least one of four characteristics (ignitability, corrosivity, reactivity, or toxicity), or appears on special EPA lists.
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https://www.encyclo.co.uk/local/20094

A class of waste materials that poses immediate or long-term risks to human health or the environment and requires special handling for detoxification or safe disposal. Both industrial and household wastes include hazardous materials.
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https://www.encyclo.co.uk/local/20855

Waste substance, usually generated by industry, that represents a hazard to the environment or to people living or working nearby. Examples include radioactive wastes, acidic resins, arsenic residues, residual hardening salts, lead from car exhausts, mercury, non-ferrous sludges, organic solvents...
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https://www.encyclo.co.uk/local/21221

Byproducts of society that can pose a substantial or potential hazard to human health or the environment when improperly managed. Possesses at least one of four characteristics (ignitability, corrosivity, reactivity, or toxicity), or appears on special U.S. Environmental Protection Agency lists.
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https://www.encyclo.co.uk/local/22831
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