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Air pollution is caused by substances (pollutants) that mix with air and reduce air quality, creating air that can be unhealthy to breathe. Air pollution is caused by natural sources like dust and man-made sources like motor vehicles and industrial facilities. Common household products such as aerosol sprays, paints, and solvents can also cause air pollution. In lower-income, racially diverse neighborhoods in the City’s southeast area, many homes are located close to industrial facilities and major highways and transportation corridors. The air in these neighborhoods can be more polluted because of these industrial sources and heavy traffic. These pollutants can cause serious health problems, particularly for children and the elderly.
San Francisco is habitat for 800,000 people – meeting needs for space to work, play, and learn; for food, water, and air; for community with local flora and fauna. SF Environment provides support for urban agriculture and forestry and green buildings, helping residents and businesses harness environmental opportunities.