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

lowest acceptable daily dose

Agricultural chemicals; Pesticides

The largest quantity of a chemical that will not cause a toxic effect, as determined by animal studies.

lowest achievable emission rate

Agricultural chemicals; Pesticides

Under the Clean Air Act, the rate of emissions that reflects (1) the most stringent emission limitation in the implementation plan of any state for such source unless the owner or operator ...

Lowest Observed Adverse Effect Level (LOAEL)

Agricultural chemicals; Pesticides

The lowest level of a stressor that causes statistically and biologically significant differences in test samples as compared to other samples subjected to no stressor.

macropores

Agricultural chemicals; Pesticides

Secondary soil features such as root holes or desiccation cracks that can create significant conduits for movement of NAPL and dissolved contaminants, or vapor-phase contaminants.

magnetic separation

Agricultural chemicals; Pesticides

Use of magnets to separate ferrous materials from mixed municipal waste stream.

major modification

Agricultural chemicals; Pesticides

This term is used to define modifications of major stationary sources of emissions with respect to Prevention of Significant Deterioration and New Source Review under the Clean Air Act.

Term used to determine the applicability of Prevention of Significant Deterioration and new source regulations. In a nonattainment area, any stationary pollutant source with potential to emit more ...