#aqi — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #aqi, aggregated by home.social.
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'Dangerous' air quality in Detroit, Minneapolis as thick wildfire smoke shrouds the sky for millions
Smoke from wildfires burning in Ontario have caused air quality to reach "dangerous" levels across Canada, and the northeastern and midwestern United States. And it could get worse before conditions improve.
By Brian Lada, AccuWeather meteorologist
Published Jul 15, 2026 11:50 AM EDT | Updated Jul 16, 2026
" Massive plumes of smoke are descending across parts of Canada and the United States, creating dangerous air quality and scenes reminiscent of the historic wildfire smoke outbreak from three summers ago.
" 'In 2023, a major fire outbreak in Quebec caused days of unhealthy air quality in the northeastern U.S.,' AccuWeather Vice President of Forecast Operations Dan DePodwin said. 'This event could cause similar levels of poor air quality in spots.'
"Air quality alerts have been issued for millions of people, including across all of #Connecticut, #Delaware, #Massachusetts, #Michigan, #NewHampshire, #NewJersey, #NewYork, #Ohio, #Pennsylvania, #RhodeIsland and #Wisconsin.
"Over 800 wildfires are currently burning across Canada, including dozens that are out of control across western #Ontario, the source of most of the smoke. 'Many of these fires may have been started by lightning,' AccuWeather Senior Meteorologist Brett Anderson said.
"On Wednesday, #Toronto had some of the worst air quality in North America, reaching 'very unhealthy' levels with an AQI of 220. #BostonMA was not far behind with an unhealthy AQI of 147.
" 'When the AQI climbs into the 150+ range for a full day outside, that’s in the ballpark of [smoking] 7 to 9 cigarettes,' Dr. Jonathan M. Tan, division chief of General Anesthesiology at Children’s Hospital of Philadelphia, told AccuWeather.
"Conditions deteriorated by Thursday morning, with widespread "dangerous" air quality across nearly all the Great Lakes region and into parts of the Northeast. Minneapolis and Duluth, Minnesota, as well as Detroit, were among the worst cities at daybreak Thursday, with AQIs over 340.
" 'Any exposure to the air, even for a few minutes, can lead to serious health effects on everybody,' Plume Labs said.
Avoid outdoor activities.' "#CanadianWildfires #CRBox #AirQuality
#WildfireSmoke #AQI #HEPAFilters #CorsiRosenthalBox #AirCleaners #Masks #ParticulateMatter #RespiratorMasks #StayIndoors #HazardousAir #AirQualityAlert -
Canadian #wildfire smoke turns air hazardous in the US #Midwest. Officials say stay inside
By TAMMY WEBBER and PHILIP MARCELO, July 16, 2026
NEW YORK (AP) — "Heavy, pungent smoke from #CanadianWildfires darkened skies in the U.S. on Thursday from the #GreatLakes to parts of the #EastCoast, reducing visibility for commuters and prompting warnings that air quality could make being outside dangerous.
"#Detroit’s air quality was among the worst in the world for major cities, as a lingering high pressure system trapped smoke from dozens of fires in Canada and northern Minnesota, said Steven Freitag, a National Weather Service meteorologist in Pontiac, Michigan.
" 'Sure enough, it arrived in force here and it’s really pretty extreme levels,' said Freitag, who noted that visibility in some areas was reduced to a half mile.
"Omar Mitchell wore a mask as he walked to his restaurant in Detroit. He said he urged his employees to do the same.
" 'It’s scary,' Mitchell, 50, said as he looked at the sky. 'You don’t know necessarily what the side effects may be. That’s days or months later.'
"Cities across the Great Lakes states registered air quality ranging from unhealthy to hazardous — which means it’s unhealthy for anyone, regardless of health conditions. Microscopic particles can lodge deep in the lungs and enter the bloodstream, leading to heart and lung problems and contributing to other long-term health issues.
"All of #Michigan and much of #Minnesota were under a hazardous #AirQualityAlert. In the Chicago area, air quality ranged from very unhealthy to hazardous.
"National Weather Service meteorologist Jake Petr said even if winds from the northwest clear skies as expected later this week, the smoky air could keep returning until the fires are out. That could take weeks or longer.
" 'Anytime we have something that could bring air from that region until the fires are over, it could conceivably dip back into the area,' Petr said.
"In #SaintPaulMN, the air was 'glowing yellow,' said Brent Williams, head of the soil, water and climate department at the University of Minnesota, who said the area 'could be looking at weeks to months of continued smoke and flare-ups off and on as the winds blow in different directions.'
"A study published this year found that long-term exposure to tiny particles from wildfire smoke contributed to an average of 24,100 deaths a year in the lower 48 states. Long-term exposure can make existing health problems worse and lead to a range of chronic and deadly health issues, including respiratory illness, cardiovascular and neurological diseases, and premature death."
https://apnews.com/article/canada-wildfires-smoke-us-ae4b2bd09a97919a081e26ede6a6d355
#CRBox #AirQuality #WildfireSmoke #AQI #HEPAFilters #CorsiRosenthalBox #AirCleaners #Masks #ParticulateMatter #RespiratorMasks #StayIndoors #ThanksBigOil
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A bit clunky, but it's crowdsourced and has a lot of places other sites don't have...
#WorldAirQuality Index [#WAQI] project
"The map shows the real-time air quality for more than 10,000 stations in the world."
#AQI #Wildfires #Heatwave #Heatwaves #ClimateChange #GlobalHeating #Pollution #ExtremeTemperatures #AirQualityIndex
#GlobalWeather #WeatherWebsites -
I've used this website to track wildfires in British Columbia last year. US and Canada only, though... On the map right now, one can see there's a LOT of wildfires in #Alaska and part of #Yukon! Yikes!
#AQI #Wildfires #Heatwave #Heatwaves #ClimateChange #GlobalHeating #ExtremeTemperatures
#GlobalWeather #WeatherWebsites
#WeatherResources #USWx #CanadianWx #WildfireWeather #ClimateChangeWeatherWheel -
Understanding Canadian Air Quality Health Index (AQHI) & Wildfire Smoke
Wildfire smoke consists of toxic gases and particulate matter (PM) when breathed in gets into our lungs, bloodstream, and even our brain. 🧵1/
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My #airQuality monitor is finlazed with a temperature and humidity sensor. You can see on the graph when I was soldering. I'm glad I'm not doing that activity very often!
I am trying to categorize the sensor readings into ranges: perfect, healthy, average, bad, and terrible. However, I am having difficulty determining the ranges and a formula to categorize them using a single sensor.
Any advice?
Check #alttext for details
#ESPHome #SPS30 #HomeAssistant #diy #AirQualityMonitoring #pm25 #aqi -
In other news, here are some #weather websites that I visit frequently -- some of them very useful when it comes to #wildfires and #AQI...
#ZoomEarth | Live Weather Map & Hurricane Tracker
https://zoom.earth/National Weather Service [#NWS]
https://www.weather.gov/World Weather Map - Interactive weather map.
https://map.worldweatheronline.com/#Windy: Wind map & weather forecast
https://www.windy.com/#AirNow Fire and Smoke Map
https://fire.airnow.gov/World's Air Pollution: Real-time Air Quality Index [#WAQI]
https://waqi.info/#ClimateChange #Weather #Wildfires #AirQuality #WorldWeather #Climate
#ExtremeWeather -
I have a Bosch #BME680 at an #ESP 8266 outside that offers Air Quality Monitoring - #AQI.
They reach values of >200 with lowest values i have see after rain being down to 80.
The internet claims values over 200 are really bad - anyone any experience with those sensors outside? What does your sensors show? #AitQuality #AirQualityMonitoring #Rotterdam