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

lethal dose 50

Agricultural chemicals; Pesticides

Also referred to as LD50, the dose of a toxicant that will kill 50 percent of test organisms within a designated period of time; the lower the LD 50, the more toxic the compound.

Level of Concern (LOC)

Agricultural chemicals; Pesticides

The concentration in air of an extremely hazardous substance above which there may be serious immediate health effects to anyone exposed to it for short periods

life cycle of a product

Agricultural chemicals; Pesticides

All stages of a product's development, from extraction of fuel for power to production, marketing, use, and disposal.

lifetime average daily dose

Agricultural chemicals; Pesticides

Figure for estimating excess lifetime cancer risk.

lifetime exposure

Agricultural chemicals; Pesticides

Total amount of exposure to a substance that a human would receive in a lifetime (usually assumed to be 70 years).

Light Non-Aqueous Phase Liquid (LNAPL)

Agricultural chemicals; Pesticides

A non-aqueous phase liquid with a specific gravity less than 1.0. Because the specific gravity of water is 1.0, most LNAPLs float on top of the water table. Most common petroleum hydrocarbon fuels ...