Remote sensing technology reduces urban air pollution

Cities that adopt roadside emissions sensors to detect high polluting vehicles, together with an enforcement program to inspect and repair these vehicles, could significantly improve urban air quality, new research shows.

'Refinery dust' reveals clues about local polluters

Cloaked in the clouds of emissions and exhaust that hang over the city are clues that lead back to the polluting culprits, and a research team led by the University of Houston is hot on their trails.

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