The EPA's network consistently failed to capture air ... block level, one of the U.S. Census Bureau's smallest units for residential patterns. Using the EPA Air Quality System Regulatory ...

The article highlights myriad problems with the Environmental Protection Agency’s air quality monitoring system, using data ... drastically different from one block to the next, granular changes ...

As wildfires raged in Northern California, Bay Area residents checked websites and apps last week to nervously monitor an approaching smoke plume roughly the size of Rhode Island. What some people ...