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Environment & Energy Report

Cars That Sniff Pollution to Map Air Quality in California

Jan. 14, 2020, 6:00 PM

It’s like Google Street View, but for mapping greenhouse gases and smog.

A fleet of sensor-loaded cars, deployed by California company Aclima Inc., will try to measure air pollution on every public street across the sprawling San Francisco Bay Area, an effort likely to take two years.

Local air quality regulators are paying Aclima $6 million for the project, which was announced Tuesday. They hope to see how levels of smog-forming pollutants, soot and greenhouse gases vary not just from city to city, but block by block. The results could help the Bay Area Air Quality Management District spot...

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