Category Archives: USA & Canada

Air Quality Endangered by Fires in Washington

Forest fires that have blazed for days in central Washington state have taken a toll on the region’s air quality, state officials said Thursday, with smoke darkening the skies and residents told to stay indoors with their windows shut. Near … Continue reading

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Aging, polluting school buses remain on Californian roads

Tens of thousands of California schoolchildren ride aging school buses that emit harmful pollutants, an analysis of state data shows. Unlike many states, California does not require bus owners to take buses off the road after a set number of … Continue reading

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Idaho wildfires blamed for smokey conditions in the Top of Utah

Three fires burning several thousand acres in central Utah are pumping a lot of smoke into the air, but fires in Idaho are making the mountains in Top of Utah disappear. Mount Ogden was invisible from Business Depot Ogden by … Continue reading

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Unhealthy air continues in Missoula, Bitterroot; expected to linger

Air quality in Missoula on Sunday ranged from “moderate” to “unhealthy” for sensitive groups, and the Missoula City-County Health Department said the cumulative air quality for the day as a whole was “unhealthy.”Air quality conditions deteriorated in the Bitterroot Valley, … Continue reading

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You Can Literally Hear What Pollution Sounds Like

In the flat lands of California’s Central Valley, oil pumps obscured by waving lines of fuel-richened air dip and rise on the horizon. Two hundred miles to the north and west, aging eighteen-wheelers pound through an urban bypass tunnel, staining … Continue reading

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America’s 10 Most Polluted States

Half of all industrial toxic air pollution comes from power plants, and 6,700 power plants and heavy industries are responsible for 80 percent of all greenhouse gas emissions in the United States. Coal- and oil-fired power plants contribute 44 percent … Continue reading

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Summer brings spike in ozone pollution

The searing summer in St. Louis has helped drive ozone levels to the highest levels seen in five years, killing the region’s chances for meeting federal standards any time soon. Data from air monitors across the region quantify the extent … Continue reading

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Heavy smoke in Salmon prompts health advisory, Treasure Valley’s air inches into ‘good’ range

Air quality in Lemhi and Custer counties has hit the “very unhealthy” category, prompting warnings from the Idaho Department of Health & Welfare to stay indoors as much as possible; older adults, young children and those with medical conditions will … Continue reading

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