Google has partnered with Aclima to map urban air quality through Street View cars.
Mobile sensors on the cars will measure nitrogen dioxide, nitric oxide, ozone, carbon monoxide, carbon dioxide, and other pollutants that can affect health.
A experiment was conductedin Denver. The cars drove for 750 hours, over 30 days, and gathered 150 million data points. The testing was done during the DISCOVER-AQ study conducted by NASA and the EPA.
The project will be expanded, beginning in San Francisco this fall.