total volume control; regulations on total allowable volumes of pollutants
Primarily used in environmental policy to refer to caps on the total amount of pollutants that can be emitted, often in the context of air or water quality management.
Total volume control was introduced to prevent air pollution.
この地域では、窒素酸化物の総量規制が強化されている。
In this region, regulations on total allowable volumes of nitrogen oxides have been tightened.