National Pollutant Inventory

Substances

Toluene-2,4-diisocyanate: Sources of emissions

Industry sources

Industrial emissions to air (especially companies producing the materials listed above) or spills.

Diffuse sources, and industry sources included in diffuse emissions data

Emission to air (by outgassing) from products containing TDI.

Natural sources

There are no known or expected natural sources of TDI emissions.

Transport sources

No significant mobile emission sources.

Consumer products

Polyurethane coatings, cement sealers, polyurethane mastic sealants, and polyurethane cushions and pads. Very low emissions of TDI have been infrequently detected from cushions.

Key

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Factory. Credit: Michael Lindquist