Many of our facilities are subject to annual emissions reporting of criteria and hazardous air pollutants (HAPs) which result from our operations. Due to the inherently clean-burning nature of natural gas, the major reported emissions include NOx, carbon monoxide (CO), Volatile Organic Compounds (VOCs), and formaldehyde. Emissions of SO₂ and particulate matter are relatively negligible..

This table provides a summary of our major reported emissions. These reported totals of our corporate-wide emissions equate roughly to potential NOx emissions from a 3,700-megawatt (MW) coal power plant.

Emissions of Criteria Pollutants Reported for 2006