Regional Profile for EPA Region 9
This section examines TRI reporting in EPA Region 9. Region 9 includes Arizona, California, Hawaii, Nevada, the Pacific Islands (American Samoa, Guam, and the Northern Mariana Islands), and 148 Tribes.
For state- and tribe-specific TRI data, see the Where You Live section and the Tribal Communities section.
Industry Sectors
This chart shows the industry sectors with the most TRI-reporting facilities in Region 9.
Note: Percentages do not sum to 100% due to rounding
In 2020:
- 1,606 facilities in Region 9 reported to TRI, slightly fewer than reported for 2019. The sectors with the most facilities were the nonmetallic mineral products (including cement manufacturing) and chemical manufacturing sectors.
- While the figure shows the sectors with the most TRI facilities in the region, the most TRI releases in Region 9 were from the metal mining sector, which accounted for 86% of the region’s releases for 2020. After metal mining, the primary metals (including smelting), hazardous waste management, and petroleum products manufacturing sectors reported the largest releases. Note that relatively few facilities in the metal mining, primary metals, and hazardous waste management sectors reported to TRI in this region and those sectors are included in “All Other Sectors” in the pie chart above.
This page was published in March 2022 and uses the 2020 TRI National Analysis dataset made public in TRI Explorer in October 2021.