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 Changes Per Hour (ACH)

Agricultural chemicals; Pesticides

The movement of a volume of air in a given period of time; if a house has one air change per hour, it means that the air in the house will be replaced in a one-hour period.

air cleaning

Agricultural chemicals; Pesticides

Indoor-air quality-control strategy to remove various airborne particulates and/or gases from the air. Most common methods are particulate filtration, electrostatic precipitation, and gas sorption.

air contaminant

Agricultural chemicals; Pesticides

Any particulate matter, gas, or combination thereof, other than water vapor. (See: air pollutant.)

air curtain

Agricultural chemicals; Pesticides

A method of containing oil spills. Air bubbling through a perforated pipe causes an upward water flow that slows the spread of oil. It can also be used to stop fish from entering polluted water.

air exchange rate

Agricultural chemicals; Pesticides

The rate at which outside air replaces indoor air in a given space.

Open vertical gap or empty space that separates drinking water supply to be protected from another water system in a treatment plant or other location. The open gap protects the drinking water from ...