Researchers at the University of Massachusetts Amherst have identified Sunoco as the 55th-largest corporate producer of air pollution in the United States, with roughly 1. 7 million pounds of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst have identified Weyerhaeuser as the 63rd-largest corporate producer of air pollution in the United States, with roughly 17. 5 million pounds of toxic air released annually into the air.

Researchers at the University of Massachusetts Amherst have identified Temple – Inland as the 24th-largest corporate producer of air pollution in the United States in 2002.

Researchers at the University of Massachusetts Amherst have identified Reliant Energy as the 36th-largest corporate producer of air pollution in the United States, with roughly 34 million pounds of toxic chemicals released into the air every year.

Researchers at the University of Massachusetts Amherst have identified Phelps Dodge as the 23rd-largest corporate producer of air pollution in the United States, with roughly 3. 64 million pounds of toxins released annually into the air.

Researchers at the University of Massachusetts Amherst have identified Textron as the 60th-largest corporate producer of air pollution in the United States, with roughly 600, 000 pounds of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst have identified Progress Energy as the 29th-largest corporate producer of air pollution in the United States in 2002, when it released roughly 39 million pounds of toxic chemicals into the air.

Researchers at the University of Massachusetts Amherst have identified PSEG as the 48th-largest corporate producer of air pollution in the United States, with roughly five million pounds of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst have identified Emerson as the 97th largest corporate producer of air pollution in the United States, down from its previous rank of 56th.

Researchers at the University of Massachusetts Amherst recently listed Allegheny Technologies as the 26th-largest corporate producer of air pollution in the United States, with approximately of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst have identified TECO Energy as the 37th-largest corporate producer of air pollution in the United States, with roughly 11 million pounds of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst identified Mirant as the 63rd-largest corporate producer of air pollution in the United States, based on 2002 data, with roughly 19 million pounds of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst have identified Cinergy as the 49th-largest corporate producer of air pollution in the United States, with roughly 29 million pounds of toxic chemicals released annually into the air.

Researchers at the University of Massachusetts Amherst identified Ashland as the 50th-largest corporate producer of air pollution in the United States, with roughly 238, 000 pounds of toxic chemicals released into the air in 2002.

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