The Environmental Protection Agency (EPA) has linked fine particle exposure to adverse health effects, including premature death, aggravated asthma and chronic bronchitis.1 While individual particles are invisible to the naked eye, collectively they can appear as smog or dust clouds.
Particles measuring 0.3-0.5 microns in size have a greater likelihood of being deeply inhaled into your lungs, where they can be absorbed into the bloodstream or remain embedded in your lung tissue for extended periods of time.
Those at the greatest risk are the elderly and children, along with those with pre-existing respiratory or cardiovascular disease. Even the healthy, may experience dangerous symptoms from elevated exposure to particle pollution including:
1Health and Environmental Effects of Particulate Matter
U.S. Environmental Protection Agency