Pesticides

Pesticides

Any chemical or substance used to kill or inhibit the growth of pests that damage or interfere with the growth of crops, shrubs, tress, timber and other vegetation useful to humans.

Industry: Agricultural chemicals

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Pesticides

air mass

Agricultural chemicals; Pesticides

A large volume of air with certain meteorological or polluted characteristics--e.g., a heat inversion or smogginess--while in one location. The characteristics can change as the air mass moves away.

air monitoring

Agricultural chemicals; Pesticides

air monitoring is control of air, air controlled.

air/oil table

Agricultural chemicals; Pesticides

The surface between the vadose zone and ambient oil; the pressure of oil in the porous medium is equal to atmospheric pressure.

air padding

Agricultural chemicals; Pesticides

Pumping dry air into a container to assist with the withdrawal of liquid or to force a liquefied gas such as chlorine out of the container.

air permeability

Agricultural chemicals; Pesticides

Permeability of soil with respect to air. Important to the design of soil-gas surveys. Measured in darcys or centimeters-per-second.

air plenum

Agricultural chemicals; Pesticides

Any space used to convey air in a building, furnace, or structure. The space above a suspended ceiling is often used as an air plenum.

Any substance in air that could, in high enough concentration, harm man, other animals, vegetation, or material. Pollutants may include almost any natural or artificial composition of airborne matter ...