Add Yahoo as a preferred source to see more of our stories on Google. Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air pollution.

Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air pollution. The air quality has some Northeasterners wondering, what is the AQI, ...

As fire season lengthens and excessive heat plagues Idaho more frequently during the summer months, checking the air quality goes hand-in-hand with checking the local weather forecast. External ...

Wildfires in Canada are sending heavy smoke across the northern U.S., and New Jersey is experiencing some unhealthy air pollution. The Environmental Protection Agency and each state measure pollution ...