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US air quality map: Alert issued for Philadelphia, Pittsburgh after Canadian, Minnesota wildfires: Code Purple activated

A first alert has been issued for the Philadelphia area because of deteriorating air quality, following the arrival of smoke from Canadian wildfires and northern Minnesotan wildfires on Thursday, which is anticipated to persist until Saturday.

US air quality map: Philadelphia has issued a Code Purple air quality alert as smoke from Canadian and Minnesotan wildfires impacts the region. (Getty Images via AFP)

The Pennsylvania Department of Environmental Protection (DEP) has issued a Code Purple air quality alert for the entire state today. Earlier, Allegheny County was under a Code Maroon alert. A Code Maroon (the most severe) or Code Orange (less severe) alert may be issued today, depending on the specific location.

All residents are advised to refrain from engaging in prolonged or strenuous outdoor activities during Code Purple alerts, as per the DEP.

Vulnerable groups, including children, the elderly, and individuals with respiratory conditions, should completely avoid outdoor activities.

Additionally, people are encouraged to refrain from using gas-powered lawn equipment and from lighting campfires.

Smoke in Butler County

The smoke arrived in Butler County late yesterday morning, progressing southward into the city by early afternoon, and completely covering the area by evening.

According to the National Weather Service, it is expected to linger over the region throughout today, with a possibility of beginning to clear from Southwest Pennsylvania by late tonight.

The smoke emanating from over 100 wildfires currently raging across Ontario follows three years after wildfire smoke from Canada transformed the skies in the region into an unsettling orange and gray hue, obscuring landmarks and rendering the Philadelphia skyline nearly invisible.

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Experts warn residents about health issues

As the smoke approaches the Philadelphia area, medical professionals are cautioning residents about the possible health implications.

Dr. Leah Lande, a pulmonologist affiliated with Lankenau Medical Center, stated that wildfire smoke comprises harmful gases, ozone, and fine particulate matter that can present significant health hazards, particularly for children, the elderly, and individuals with heart or lung ailments.

Health authorities are advising residents to minimize unnecessary outdoor activities, keep windows shut, and remain in air-conditioned environments whenever feasible over the coming days.

To maintain clean indoor air, the Philadelphia Health Department recommends the following actions: close all windows and doors, turn off air conditioning or set air conditioners to recirculate mode, refrain from activities that generate additional particulate matter indoors, such as smoking and vaping, utilizing gas, propane, or wood-burning stoves and heaters, spraying aerosol products., frying or broiling food, burning candles or incense and vacuuming, unless using a vacuum equipped with a HEPA filter.

If you don’t have an air conditioner, remaining indoors with closed windows may pose risks during hot weather. If you feel overheated, it is advisable to seek a location with air conditioning, as noted by the health department.

When to seek medical attention

Dr. Lande advised that individuals should pursue medical attention if they encounter: chest tightness, shortness of breath, coughing , wheezing and rapid or irregular heartbeat

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