"However, the city is characterized with significant pollution of air with industrial emissions."
The agency said it would lower industrial emissions by 90 percent, but some groups had sought more stringent regulations.
Government policy has focused on reducing industrial emissions in the Valley of Mexico.
It is overwhelmed by industrial emissions, smoke, vehicle exhaust and human waste.
For last 15 years industrial emissions thus have fallen almost by half.
The environmental debate here is more than just a local dispute over industrial emissions.
People who live in communities contaminated by industrial emissions.
The problem is likely to continue, he said, until industrial and automotive emissions are reduced.
But Texas still ranks first in industrial emissions, excluding mining waste.
What is ultimately needed, she said, are tougher controls on industrial emissions.
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