Summary
Scientists will check tiny particles and gases to find out where they come from.
The lab will help the city make better plans to keep the sky clean.
The lab is called the Integrated Atmospheric Chemistry and Aerosol Toxicity Analysis Laboratory.
It looks at tiny particles, gases, and other pollutants in the air.
It tells leaders which sources, like cars or factories, make the most pollution.
Scientists will check tiny particles and gases to find out where they come from.
The lab will help the city make better plans to keep the sky clean.
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