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Sonoma County Indicators

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Environment

Sonoma County remains the cleanest and best environment in the region, with the greatest amount of good air quality days and decreasing green house gas emissions (GHGs). The decrease in GHGs is in part due to over 99% of energy production in Sonoma County being renewable. The greatest contributor to this feat are the geo-thermal facilities nestled in the Mayacama Mountains.

Graph illustrating the air quality index in Sonoma County for the year 2021. AQI for 2021 never went above 100. The highest AQI of the year was 88 and came on August 28th. The lowest AQI of 5 was recorded on August 5th. Source: Environmental Protection Agency Graph the air quality, aka % of days with good air, in Sonoma County in 2021. Sonoma County had 88% of days with air considered “good quality”. Santa Cruz County and Monterey County had a higher percentage. Source: Environmental Protection Agency
Graph illustrating the % of energy produced by fuel type. Geothermal energy accounted for 99% of energy produced in Sonoma County. Source: California Energy Commission Graph illustrating the % of total energy Produced MW/H. Sonoma County’s energy production is 99.3% renewable. Napa and Marin counties are the only neighboring counties that have a higher percentage. All other neighboring counties percentages are below 50%. Source: California Energy Commission
Graph illustrating the metric tons of greenhouse gas emissions that the Sonoma County Central Disposal Site totaled. 2020 greenhouse gas emissions at the Sonoma County Central Disposal Site totaled 63,362 metric tons of carbon dioxide. From 2010 to 2020, the county’s disposal site has reduced its emissions by 59%. Between 2013 and 2014, Sonoma County’s Central Disposal Site reported greenhouse gas emissions plummeted. Source: Environmental Protection Agency