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

Back pressure

Agricultural chemicals; Pesticides

A pressure that can cause water to backflow into the water supply when a user's waste water system is at a higher pressure than the public system.

Backflow/back siphonage

Agricultural chemicals; Pesticides

A reverse flow condition created by a difference in water pressures that causes water to flow back into the distribution pipes of a drinking water supply from any source other than the intended one.

1. The concentration of a substance in an environmental media (air, water, or soil) that occurs naturally or is not the result of human activities. 2. In exposure assessment the concentration of a ...

Backwashing

Agricultural chemicals; Pesticides

Reversing the flow of water back through the philtre media to remove entrapped solids.

Backyard composting

Agricultural chemicals; Pesticides

Diversion of organic food waste and yard trimmings from the municipal waste stream by composting hem in one's yard through controlled decomposition of organic matter by bacteria and fungi into a ...

Barrel sampler

Agricultural chemicals; Pesticides

Open-ended steel tube used to collect soil samples.

BACT - Best Available Control Technology

Agricultural chemicals; Pesticides

An emission limitation based on the maximum degree of emission reduction (considering energy, environmental, and economic impacts) achievable through application of production processes and available ...