Category Archives: USA & Canada

Forest fires impact air quality across Canada

What’s been causing Western Canada’s recent smog alerts and poor air quality? The answer lies somewhere between forest fires and upwind. Canada’s western provinces have been on the radar. July was a month of tornadoes, heavy rainfall, and forest fires … Continue reading

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NCAR air pollution study is largest in Colorado

Air pollution is a health hazard, especially for those with asthma and other breaking problems. Experts say Colorado  frequently exceeds national standards for ozone, and now scientists from around the world are getting closer look as part of the largest … Continue reading

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Breathe easy, Vancouver: Your worst air pollution would be welcome relief in Hong Kong

I’ll wager I wasn’t the only former Hong Kong resident who cocked an eyebrow last week when Metro Vancouver authorities issued a rare air-quality advisory. Residents were told to avoid strenuous outdoor exercise at certain times, with air conditions said … Continue reading

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Wildfires causing hazy skies, vibrant sunsets in Minnesota

Have the skies looked a little hazy, and the sunsets extra red this weekend? That’s because strong winds have blown particles and smoke from a massive, rapidly spreading wildfire in north-central Washington state and Canada to Minnesota, which is creating a foggy … Continue reading

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Air quality alert issued for wildfire smoke

Smoky air that blew into Inland Northwest in a few hours Thursday afternoon likely will persist through at least Saturday as a 12-day heat wave gives way to moderating temperatures, but also gusty winds. The blue-brown haze from Central Washington … Continue reading

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Bill reintroduced to give Utah Division of Air Quality more ‘flexibility’

A bill was reintroduced Wednesday that would give the Utah Division of Air Quality more flexibility in forming strategies to achieve standards set by the Environmental Protection Agency. HB121 was introduced during the 2014 Legislature and approved by the Senate, but … Continue reading

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NASA to Perform Air Quality Research Study

The National Aeronautics and Space Administration NASA is launching the latest study in a project spanning four North American cities analyzing factors that lead to unhealthy air quality conditions. NASA’s latest study will bring a King Air research aircraft and … Continue reading

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Pollutionwatch: The world’s dirtiest cities

For the first time in history, over half the world’s population now live in cities. But only 12% of urban dwellers enjoy airborne particle pollutionthat meets World Health Organisation (WHO) guidelines. Globally, lowest city air pollution is in Canada and Iceland … Continue reading

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