![]() Getty fire: burned 745 acres in a dense area of western Los Angeles near Brentwood, CA, resulting in the displacement of thousands of residents and the destruction or damage of 25 residences 3.In the fall of 2019, the air quality index in Santa Rosa experienced noticeable increases, in some cases more than doubling from the monthly average of 6.8 µg/m 3 to as high as 12.6 µg/m 3 (US AQI measurement of 52, “moderate”) as a result of several major wildfires in the Bay Area and beyond, including: The Santa Rosa AQI has also been subject to drastic spikes in concentrations of dangerous air pollutants like PM2.5 due to the increasing prevalence of wildfires in California and, in particular, around the greater San Francisco Bay Area and Northern California. 2 Even lower concentrations of air pollution, especially PM2.5 particles that are small enough to be breathed into the lung and penetrate into the bloodstream, have been linked to long-term health effects such as lung disease, heart disease, and premature death. ![]() However, the WHO, a leading global health organization, along with researchers from The Lancet, have stated that no level of air pollution is ultimately safe. ![]() According to the US AQI developed by the Environmental Protection Agency (EPA), any AQI measurement between 0 and 50 is considered “good” and is defined as posing little to no risk to any individuals in the general population. This is well below the World Health Organization’s (WHO) annual mean threshold of 10 µg/m 3 and well within the “good” range of US AQI measurements. In 2019, Santa Rosa air quality averaged an annual concentration of fine particles ( PM2.5, or particulate matter smaller than 2.5 microns in diameter) of 6.8 µg/m 3 (equivalent to a US AQI measurement of 28). As a result, Santa Rosa generally does not experience a high volume of air pollution from industry and vehicle traffic that is typical of the San Francisco Bay Area. Santa Rosa also has a comparatively small population of about 177,000 (about 328,000 in the greater Santa Rosa area) in relation to much larger Northern California cities like San Francisco and Oakland. Santa Rosa is relatively remote in comparison to nearby major metropolitan areas, including the San Francisco Bay Area. Santa Rosa air quality index (AQI) readings are generally considered to be “good” according the US air quality index (AQI) scale. Santa Rosa is a city in Sonoma County considered to be one of the world capitals of wine production. How is the air quality in Santa Rosa, CA?
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