The Air District is issuing a Spare the Air Alert for tomorrow, Friday, December 20, which bans burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors.
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Learn about Marin County - its climate, potential air pollution concerns, and current air quality. You can also view upcoming Air District events in Marin County and read about local efforts to improve air quality.
The Air District is issuing a Spare the Air Alert for tomorrow, Friday, December 20, which bans burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors.
The Air District is issuing a Spare the Air Alert for today, Sunday, December 8, which bans burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors. Regional wood burning and easterly winds transporting air pollution into the Bay Area from the Central Valley have contributed to high overnight concentrations of fine particle pollution and unhealthy air quality. Although light northerly winds will bring some improvement later in the afternoon and evening, parts of the Bay Area will still experience unhealthy air quality throughout the day. Breezier northeasterly winds will bring more substantial improvement in air quality for Monday.
The Bay Area Air Quality Management District is issuing the winter season’s first Spare the Air Alerts for Sunday, December 1, and Monday, December 2, which ban burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors.
The Bay Area Air Quality Management District is asking residents to not burn wood over the Thanksgiving holiday to help reduce air pollution and protect public health. As we enter the holiday season, gathering around a fireplace may be a tradition for many, but there are serious health impacts associated with wood burning.
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Marin County lies south of Sonoma County, bounded by the Pacific Ocean to the west, San Pablo Bay to the east, and the Golden Gate to the south. One Marin County representative sits on the Air District’s Board of Directors.
The west coast and southern portions of Marin County are often subject to cool marine air and substantial fog. Temperatures in these areas remain steady through the year because of the nearby ocean. The eastern side of Marin County is warmer and has less fog, due in large part to its distance from the ocean. The extra distance from the ocean allows the marine air to be heated before arriving at eastern Marin cities. Prevailing winds throughout the county are generally from the northwest, with wind speeds highest along the west coast. Annual rainfall in the mountains is generally higher than in most parts of the Bay Area, averaging 37 to 49 inches. The majority of rainfall across the county occurs November through March.
Interactive Air Monitoring Stations Map
Ozone and fine particle pollution, or PM2.5, are the major regional air pollutants of concern in the San Francisco Bay Area. Ozone is primarily a problem in the summer, and fine particle pollution in the winter.
Along the Marin County coast and in southern Marin County, clean air from the Pacific Ocean helps to keep air pollution at a minimum. Elsewhere in Marin, ozone only rarely becomes a concern, but the hilly terrain and colder winter temperatures can trap PM2.5 near the surface, resulting in air quality that exceeds health standards.
Last Updated: 4/21/2017