Environmental quality evaluation standard for farmland of greenhouse vegetables production.

This Standard is formulated to implement the Environmental Protection Law of the People's Republic of China, protect the ecological environment, prevent and control environmental pollution, guarantee and promote the safe production of greenhouse vegetables, and safeguard human health.
This Standard specifies various control items for soil environmental quality, irrigation water quality, and ambient air quality, and their concentration (content) limit values, and monitoring and evaluation methods, for greenhouse vegetables grown in soils.