Air Quality Data source. [2] State of the Air – 2020. Only November exceeded this standard, with a monthly AQI average of 59 (“moderate”) and PM2.5 average of 15.9 μg/m3. Localized Air Quality Index and forecast for San Jose, San José, Costa Rica. Spare the Air alerts for ozone pollution, on the other hand, occur more often in the summer when temperatures are hottest. It may cause minor breathing discomfort to sensitive people. ... Air Quality Index. Nonattainment ozone days, days when ozone levels exceed air quality standards set by organizations like the EPA and state, in San Jose occur almost exclusively in the summer. 3069 Jayhawkers Pl. This hourly ranking includes 2335 USA cities with PM2.5 AQI. 18 days in 2018 did not attain the national 24-hour limit for PM2.5 (35 µg/m3), while 3 days did not attain the national 8-hour ozone standard of 0.070 ppm.1, According to the State of the Air Report by the American Lung Association, San Jose (including the San Francisco and Oakland area) ranked 3rd for worst 24-hour particle pollution out of 216 U.S. metropolitan areas and 5th for worst annual particle pollution out of 204 U.S. metropolitan areas.2. Find out more about contributors and data sources, Bay Area Air Quality Management District (BAAQMD), Open your windows to bring clean, fresh air indoors. Very easy to set up, they only require a WIFI access point and a USB power supply. 280 & 101 downwind. Like the weather, it can change from day to day. [3] Most populated cities in the U.S. - median household income 2018. In 2019, San Jose air quality averaged an overall US AQI rating of “good” and additionally met the more stringent World Health Organization (WHO) target for annual PM2.5 exposure of <10 μg/m3, with an average of 6.4 μg/m3. In San Jose, Spare the Air alerts for PM2.5 pollution typically occur in the winter or during wildfire season. The mountains surrounding the city can also have a similar effect, additionally exacerbating marine inversions. Breathing this combination of pollutants has been linked to hospital visits as a result of respiratory irritation and difficulty breathing as well as to more serious effects like reduced lung function, inflammation, bronchitis, heart failure, and even early death. 1565 Martin Ave, San jose, can 95126. Pollution levels forecasted to be “orange,” “red,” “purple,” or “maroon” indicate a Spare the Air alert. This is not the current AirNow website. San Jose is regarded as the heart of Silicon Valley and the United States tech industry. Interested in hourly forecast? Share: “ San Jose-Knox Avenue, Santa Clara, California, California Air Quality is Good - on Friday, Nov 27th 2020, 12:00 pm … Daily emissions are commonly compounded as a result of environmental factors that contribute to the trapping of air pollution in the atmosphere, including marine inversions, abundant sunshine, and the surrounding mountains. + Article Resources City of San Jose plans to double electric car charging stations with $14 million investment. Bay Area sees record number of Spare the Air alerts in 2020. Marine inversions can cause air pollution to accumulate and linger in the lower atmosphere until weather conditions change. (2019). Perfect our Industrial Strength Swirls.™ - Natural, Wild & Organic Dishes & Daily Specials - New Casual… Within a recent five-year period (2015-2020), there have been 3 record-breaking wildfire seasons: 2017, 2018 and 2020. Like much of the Bay Area, sporadic and unpredictable wildfires have the ability to greatly impact yearly data, obscuring pollution trends. (2020). In San Jose, Spare the Air alerts for PM2.5 pollution typically occur in the winter or during wildfire season. 01:56 'You can cut it with a knife': Thick smoke keeping Bay … Pomiędzy latami 60. a 90. Currently, motor vehicles account for roughly 30% of San Jose’s fine particulate matter (PM2.5).4 As electric cars using cleaner energy become a larger share of vehicles on the road, it’s possible that this burden on the air will be greatly reduced. Millions of people live in areas where air pollution can cause serious health problems. This website is historical material reflecting the AirNow website as it existed on April 15, 2020. Pollen and Air Quality forecast for San Jose, CA with air quality index, pollutants, pollen count and pollution map from Weather Underground. Smoke from Kincade Fire could blanket Bay Area. 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