Agricultural chemicals

Agricultural chemicals

Includes chemicals designed for agricultural use for protection of crops from fungus and insects, as well as for the growth and protection of plants.

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Agricultural chemicals > Pesticides

secondary effect

Agricultural chemicals; Pesticides

Action of a stressor on supporting components of the ecosystem, which in turn impact the ecological component of concern. (See: primary effect.)

secondary materials

Agricultural chemicals; Pesticides

Materials that have been manufactured and used at least once and are to be used again.

secondary standards

Agricultural chemicals; Pesticides

National ambient air quality standards designed to protect welfare, including effects on soils, water, crops, vegetation, man-made (anthropogenic) materials, animals, wildlife, ...

secondary treatment

Agricultural chemicals; Pesticides

The second step in most publicly owned waste treatment systems in which bacteria consume the organic parts of the waste. It is accomplished by bringing together waste, bacteria, ...

secure chemical landfill

Agricultural chemicals; Pesticides

(See:landfills.)

secure maximum contaminant level

Agricultural chemicals; Pesticides

Maximum permissible level of a contaminant in water delivered to the free flowing outlet of the ultimate user, or of contamination resulting from corrosion of piping and plumbing ...