- Contamination originating from organic sources .
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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Organic molecular tracers — Organic molecular tracers, also referred to as organic molecular markers, are compounds or compound classes of interest in the field of air quality because they can help identify particulate emission sources, as they are relatively unique to… … Wikipedia
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Organic farming — Agriculture General … Wikipedia
Organic movement — The organic movement broadly refers to the organizations and individuals involved worldwide in the promotion of organic farming, which is a more sustainable mode of agriculture. Its history goes back to the first half of the 20th century, when… … Wikipedia
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pollution — Contamination of the environment by a variety of sources including but not limited to hazardous substances, organic wastes and toxic chemicals. Pollution is legally controlled and enforced through various federal and state laws and agencies,… … Black's law dictionary
Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p … Wikipedia
Volatile organic compound — Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary, room temperature conditions. Their high vapor pressure results from a low boiling point, which causes large numbers of molecules to evaporate or… … Wikipedia