Wildfire smoke from Canada is hitting parts of the US and Europe. Here are ways to protect yourself

Published: Wednesday, June 4, 2025 at 8:36 pm

**Wildfire Smoke Blankets US and Europe, Raising Health Concerns**

Across the United States and parts of Europe, a significant health concern is emerging: wildfire smoke. The smoke, originating from Canadian wildfires, has blanketed large areas, leading to unhealthy air quality conditions.

The Environmental Protection Agency (EPA) reports particularly poor air quality in the Midwest, Northeast, and Great Lakes regions of the U.S. The EPA's Air Quality Index (AQI) is a key metric, with lower numbers indicating better air quality. Anything above 150 on the AQI is considered unhealthy for everyone. Many areas in the Upper Midwest recorded AQI levels around 160 on Wednesday.

Individuals with pre-existing respiratory conditions, such as asthma, lung disease, or chronic obstructive pulmonary disease, are considered sensitive groups and are at higher risk. Experts advise these individuals, and anyone with heart or lung problems, to take extra precautions. This includes avoiding outdoor activities or wearing an N95 mask, which can filter out a significant percentage of harmful particles.

Even if smoke isn't visible, the air can still be unhealthy. The EPA provides up-to-date regional air quality information on its website. Additionally, platforms like PurpleAir offer real-time, street-level air quality data. For indoor air quality monitoring, experts recommend purchasing a low-cost indoor air quality monitor.

When venturing outside, short exposures are generally not a long-term health risk for most people. However, wearing an N95 mask is recommended. If experiencing symptoms like wheezing or shortness of breath, individuals should seek indoor environments with better air quality.

To improve indoor air quality, experts suggest closing windows, using air conditioners set to recirculate air, and sealing cracks that allow outside air to enter. Replacing air conditioner filters with MERV 13 filters can also help, as can utilizing air purifiers.

BNN's Perspective:

The situation highlights the interconnectedness of our environment and the potential for widespread health impacts. While the immediate focus is on individual protection, this event underscores the need for proactive measures to mitigate the effects of climate change and the resulting increase in wildfires. A balanced approach, combining individual responsibility with governmental and international cooperation, is essential to address this growing challenge.

Keywords:

wildfire smoke, air quality, EPA, AQI, N95 mask, health, respiratory health, asthma, lung disease, air pollution, indoor air quality, climate change, Canada, Europe, Midwest, Northeast, Great Lakes

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