What is the difference between the National Toxics Inventory (NTI) used in this assessment and the Toxics Release Inventory (TRI)?
The Toxics Release Inventory (TRI) is a Community Right-to-Know Inventory. Facilities that manufacture or process 25,000 pounds or more of listed substances or use 10,000 pounds or more of listed substances, that are in the manufacturing sector (Standard Industrial Classification (SIC) codes 20-39), electric utility sector, mining sector, solvent recovery sector, petroleum bulk storage sector, chemical wholesale sector and the treatment, storage and disposal sector, and that have 10 or more full-time employees are required to report annually. (Beginning in reporting year 2000, certain persistent, bioaccumulative toxic chemicals are subject to lower reporting thresholds). Under TRI, for each chemical that meets the threshold, a facility reports the quantity that is released to the air, water, land, or managed as waste on-site or off-site (disposal, treatment, energy recovery, recycling). This provides a comprehensive picture of how a facility manages its toxic chemicals in waste. There
