Contaminant or pollutant is a substance or group of substances that may be harmful to the environment or to human health. Threshold of discharge is the amount of discharge of pollutant or group of pollutants for which the industry has a legal obligation to provide data only in case when the threshold is exceeded.
The table lists the thresholds for releases into the environmental media (air, water and land) for 91 pollutants, grouped into 7 groups covered by the register in accordance with Annex 2 of the Rulebook on the form, content, methodology and manner of keeping the Register of release and transfer of pollutants.;
Table: Threshold for releases of pollutants into environmental media