Time trends analyses can be done for chemicals identified under the following health effects: Carcinogen, CEPA-toxic, Ozone Depleting Substances, Endocrine Toxicants, Reproductive/Developmental Toxicants and Respiratory Toxicants. To obtain more information on these chemical lists, see How are the health effects lists developed?
Time trends for toxic pollutants reported to NPRI do not include criteria air contaminants (CACs), recycling or energy recovery, or greenhouse gas emissions
Pollution Timeline Data are also shown in the following table:
Click on the double arrow in the left hand column below to see data listed for previous years.