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San Francisco, CA
Sunny, 9:40 AM
57- Precipitation: 0%
- Humidity: 70%
- Wind: 2 mph
Air quality is satisfactory, and air pollution poses little or no risk.(Air quality powered by Breezometer)
Some protection is required.
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Localized Air Quality Index and forecast for San Francisco, CA. Track air pollution now to help plan your day and make healthier lifestyle decisions.
- How Good Is The Quality of Air in San Francisco?
- When Is Air Quality at Its Best in San Francisco?
- Has Air Quality Improved in San Francisco?
- What Are The Main Causes of San Francisco's Pollution Levels?
- When Will San Francisco Air Quality improve?
- What Are The Health Effects of Living in The Bay area?
- When Will The Levels of Smoke and Pollution Start to Clear in Bay area?
The air quality of San Francisco is rated on average as falling into the “good” bracket of the United States Air Quality Index (US AQI), which describes a level of fine particulate matter (PM2.5) between 0 to 12 μg/m3. In 2019, San Francisco averaged an annual PM2.5 concentration of 7.1 μg/m3, also achieving the World Health Organization’s (WHO) ta...
Generally, air quality in San Francisco is at its best in the spring, as temperatures gradually warm and the forest undergrowth is still wet from the frequent rains of the winter months. March is one of the months that experiences some of the cleanest air quality of the year, as was observed in 2019, coming in with a PM2.5 reading of 4.8 μg/m3, one...
In recent years, air quality in the Bay Area has been subject to high amounts of change in regards to the wildfire season. In 2019, for example, San Francisco experienced a 43.7% decrease in PM2.5 levels from the year prior, though this reduction is attributed largely to the reduction in severe wildfires and not from emission reductions from other ...
Despite fewer power plants and industrial businesses as well as a growing mix of cleaner energy, San Francisco still experiences periods of unhealthy air quality. Primary factors for elevated pollution levels in the Bay Area include transportation emissions from cars, trucks, planes, and ships as well as seasonal wildfires. While transportation emi...
San Francisco has achieved improving air quality over the last 30 years. These improvements have largely been driven by cleaner transportation options (such as a gradual transition towards electric and hybrid vehicles), tighter regulatory controls on industry, and increasingly stringent local and state regulations on emissions ranging from domestic...
Whilst the quality of air in the Bay Area is of relatively good quality in comparison to global locations, and San Francisco’s annual (2019) PM2.5 level of 7.1 μg/m3 achieves the World Health Organisation’s target level of 10 μg/m3, the WHO emphasizes that even at low levels, there is no known “safe” limit for particle pollution below which no nega...
California wildfires have become more frequent and severe in recent years. According to a study conducted by the Lamont Doherty Earth Observatory at Columbia University, climate change has doubled the risk of extreme fire conditions in California since 1970. During the same period, the amount of annual acreage burned has increased eight-fold. As wi...
Air quality is considered satisfactory, and air pollution poses little or no risk: None: 51 -100: Moderate: Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Oct 13, 2017 · Get current and historical air quality and weather information for the Bay Area. Languages: English ... San Francisco, CA 94105. 415.749.5000 | 1.800.HELP AIR ...
San Francisco overall air quality index is 13 San Francisco PM 2.5 (fine particulate matter) AQI is 9 - San Francisco PM 10 (respirable particulate matter) AQI is n/a - San Francisco NO 2 (nitrogen dioxide) AQI is 2 - San Francisco SO 2 (sulfur dioxide) AQI is 3 - San Francisco O 3 (ozone) AQI is 13 - San Francisco CO (carbon monoxide) AQI is 19 -
Air quality is considered satisfactory, and air pollution poses little or no risk: None: 51 -100: Moderate: Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
26. Dominant Pollutant: O3. AQI Source: Contains Copernicus Atmosphere Monitoring Service information 2024 and/or modified Copernicus Atmosphere Monitoring Service information 2024. Purple Air.
