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Coefficient of haze (COH)
A measurement of the quantity of dust and smoke in the atmosphere in a theoretical 1,000 linear feet of air. A COH of less than three is considered clean air and more than five is of some concern. COH readings of 20 or more can occur in urban areas.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Pollution control
- Category: Air pollution
- Company: ARB
- Product:
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