Aclima Logo
San Diego CommunitiesMarch - June 2019
Drivers who helped collect data for San Diego

What We Did

• We measured important air pollutants: PM2.5, black carbon, nitric oxide, ozone, carbon monoxide, and carbon dioxide

• We mapped pollution in several San Diego communities including Barrio Logan, National City, Sherman Heights, Chula Vista, Otay Mesa, and San Ysidro

• We generated 80 Million Data Points, collected over 32,000 miles and 96 days

Learn more about our unique process and the science behind collecting hyperlocal air quality data.

Notable Locations

Map of local census tracts

Find your local air quality

Chicano Park

March - June 2019

Lower PM2.5

Higher PM2.5


Average particulate matter (PM2.5): 9.4 micrograms per cubic meter.

9.4 is lower than 79% of the measured area during the time period.

Nearby Places PM2.5
  • 0.0miSan Diego City Fire Station 78.6
  • 0.3miPerkins Elementary School9.9
  • 0.5miBurbank Elementary School11.7

In Detail - Location by Pollutant

Hyperlocal air quality mapping is a new capability. California and National air quality standards are calculated using a small number of stationary monitors and averaged over specific time periods, typically every 24 hours and yearly. Aclima’s method is different — we cover every street with multiple passes for quarterly averages at very precise locations. However, government standards help provide context about what pollution levels are of concern.

PM 2.5
PM 2.5 Average: 9.4 µg/m³

Emitted directly from a combustion source or formed in the atmosphere from complex chemical reactions, particulate matter (PM2.5) is one of the primary pollutants public health officials care about because it is linked to asthma, lung cancer, and deaths from cardiopulmonary diseases. You can reduce your exposure to PM2.5 by staying indoors, particularly in buildings with good ventilation and filtration systems. If outside, reduce overall activity levels. Wearing an N95 mask can help if worn properly.

Next steps - What you can do

Getting started is the hardest part, but we’re here to help make it easy. Whether you only have a second or you want to devote most of your time towards preventing the climate crisis, we’re building a library of actions you can take. Got a great idea you want to share? Let us know!

Three things you can do right now:
  1. Protect your health while we collectively work towards cleaner air in the long run.
  2. Make plans to join the next Community Air Protection Program Steering Committee meeting.
  3. Learn how you can help reduce air pollution.
Three things you can do this week:
  1. If you see something that you think is causing more pollution than it should, submit a complaint to your San Diego Air Pollution Control District.
  2. Get involved in environmental justice and government efforts to improve air pollution in your community.
  3. Spend an hour on this free air quality course to learn more about air pollution.
Three things you can do long term:
  1. Let your local government know that clean air matters to you. Any member of the public can participate during the regularly scheduled public board of supervisors meetings.
  2. Apply for a Community Air Grant to improve air quality; give the San Diego Air Pollution Control District your thoughts on air pollution issues that concern you by filling out this survey; or spread awareness in your neighborhood about the importance of air quality.
  3. Tell us how we can make this app better and easier to use!
Not seeing your address?

Aclima is actively expanding mapping coverage, seeking to make hyper-local air quality information available to communities everywhere. If data isn't currently available where you live and work, please enter your zip code to help guide where we expand our mapping next.