What is the difference between an "organic" and an "inorganic" contaminant?
Both of these terms are defined in EPA's Drinking Water Glossary: A Dictionary of Technical and Legal Terms Related to Drinking Water (EPA810-B-94-006, June 1994). According to this glossary, organic means "substances that come from animal or plant sources. Organic substances always contain carbon." Inorganic means "material such as sand, salt, iron, calcium salts and other mineral materials. Inorganic substances are of mineral origin."
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