Breaking: Toronto’s air quality among the worst in the world due to wildfire smoke
Wildfire smoke health risksWhile people respond differently to smoke, it adds that those with lung disease or heart disease, older adults, children, pregnant people, and people who work outdoors face greater risks to their health.
PM2.5 is the by-product of the smoke emitted by wildfires — fine particles of matter with a size of 2.5 microns or less. You could fit about 30 of them across the width of a hair.. At that size, it can also pass into the blood, causing a system-wide inflammation that can exacerbate heart conditions and potentially cause cancers.
By Wednesday afternoon, Toronto was registering levels of PM2.5 concentration more than 24 times the WHO recommended annual air quality guidelines.exposure to forest fire smoke and air pollution also has the potential to harm brain functionSarah Henderson, the scientific director of Environmental Health Services at British Columbia’s Centre for Disease Control, told the Star that studies show wildfire smoke exposure generally lowers brain performance in the short term.
“We know that particulate matter and other components of air pollution can cause long-term neurological harm,” Green said. “For example, there’s growing evidence associating long-term exposure to air pollution and an increased risk of dementia.
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