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Agricultural chemicals

Includes chemicals designed for agricultural use for protection of crops from fungus and insects, as well as for the growth and protection of plants.

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Agricultural chemicals > Pesticides

Working Level (WL)

Agricultural chemicals; Pesticides

A unit of measure for documenting exposure to radon decay products, the so-called "daughters." One working level is equal to approximately 200 picocuries per liter.

Working Level Month (WLM)

Agricultural chemicals; Pesticides

A unit of measure used to determine cumulative exposure to radon.

xenobiota

Agricultural chemicals; Pesticides

Any biotum displaced from its normal habitat; a chemical foreign to a biological system.

yard waste

Agricultural chemicals; Pesticides

The part of solid waste composed of grass clippings, leaves, twigs, branches, and other garden refuse.

yellow-boy

Agricultural chemicals; Pesticides

Iron oxide flocculant (clumps of solids in waste or water); usually observed as orange-yellow deposits in surface streams with excess iron content. (See: floc, flocculation.)

zero air

Agricultural chemicals; Pesticides

Atmospheric air purified to contain less than 0.1 ppm total hydrocarbons.

zooplankton

Agricultural chemicals; Pesticides

Small (often microscopic) free-floating aquatic plants or animals.