Air Releases by Chemical & Industry
Air Releases By Chemical
This pie chart shows which TRI chemicals were released into the air in the greatest quantities during 2022.
Note: Percentages do not sum to 100% due to rounding.
- The chemicals released to air in the greatest quantities during 2022 were:
- Ammonia: Facilities that manufacture nitrogen-based fertilizers accounted for 42% of ammonia air releases.
- Methanol: Most air releases of methanol were from paper manufacturing facilities.
- Sulfuric acid and hydrochloric acid: Electric utilities released more of these chemicals into the air than any other sector.
Air Releases By Industry
This pie chart shows the TRI-covered industry sectors that reported the largest quantities of air releases during 2022.
- Facilities in the following sectors accounted for the largest air releases of TRI chemicals during 2022. The chemicals released in the largest quantities by these sectors were:
- Chemical manufacturing: ammonia and ethylene.
- Paper manufacturing: methanol.
- Electric utilities: sulfuric acid.
This page was published in March 2024 and uses the 2022 TRI National Analysis dataset made public in TRI Explorer in October 2023.