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San Diego Communities

Spring 2019 (March - June)

Summer 2019 (June - September)

Fall 2019 (September - December)

Street-Level Air Pollution and Greenhouse Gases

Interactive Street-Level Air Quality Report

Drivers who helped collect data for San Diego

• Look up average seasonal pollutant and greenhouse gas levels across several San Diego communities including Barrio Logan, National City, Sherman Heights, Otay Mesa, San Ysidro, and parts of Chula Vista and El Cajon

• This reporting tool draws from more than 273 million unique data points, identifying average street-level air pollution levels in San Diego in Spring, Summer, and Fall 2019

• We measured the following air pollutant levels block-by-block throughout days and nights, weekdays and weekends: black carbon, fine particulate matter (PM2.5), ozone (O3), carbon monoxide (CO), carbon dioxide (CO2), nitric oxide (NO), and nitrogen dioxide (NO2)

Learn more about the science behind measuring and analyzing hyperlocal air pollution.

Notable Locations


    Otay Mesa

  • Significant emissions from diesel sources indicated by higher PM 2.5, black carbon, and NO₂ levels.

    San Ysidro

  • Consistently higher PM 2.5 levels.

    Downtown San Diego - East Village

  • Traffic pollution indicated by higher CO, CO₂ and NO₂.

    Intersection of Upper National City and Shelltown

  • Higher black carbon, PM 2.5, CO, and CO₂ at locations within this region, with specific locations varying by season.

    El Cajon - South of Wells Park between Jamacha and S. Mollison

  • Lower levels of air pollution and greenhouse gases than the other San Diego communities.

Street-Level Air Pollution Data

We measured air quality on this street multiple times throughout three 3-month mapping campaigns in the spring (March 1 to June 4), summer (June 5 to September 4), and fall (September 5 through December 4) of 2019. Select the season and pollutant you’d like to see in the drop-down menus.

The report provides average pollutant levels for a given location over the season we measured. Learn more about our methodology.

Chicano Park

Average PM 2.5: 9.4 µg/m³

Spring 2019 (March - June)

PM 2.5 in Detail

Fine particulate matter, or PM 2.5, is often used to assess air quality because it is linked to asthma, lung cancer, and deaths from lung and heart diseases.

The average PM 2.5 at this location in the spring (March - June 2019) was 9.4µg/m³ (micrograms per cubic meter), which is below the EPA and WHO annual mean health standards.

Chicano Park

PM 2.5






9.4µg/m³ is lower than 79% of the measured area during the time period.

Slightly below the WHO annual Air Quality Guideline Values (10µg/m³).

Below the EPA annual National Ambient Air Quality Standards (12µg/m³).

Other Pollutants

We also measured black carbon, ozone, carbon monoxide, carbon dioxide and nitric oxide.

Nearby Places

San Diego City Fire Station 7



Perkins Elementary School



Burbank Elementary School



Changes over time

A) Spring 2019 (March - June)

B) Summer 2019 (June - September)

C) Fall 2019 (September - December)

PM 2.5 (µg/m³)PM₂.₅ (µg/m³)9.4
Ozone (ppb)O₃ (ppb)30.9
Nitric Oxide (ppb)NO (ppb)< 10
< 10
< 10
Carbon Monoxide (ppm)CO (ppm)0.5
Carbon Dioxide (ppm)CO₂ (ppm)443.1
Black Carbon (µg/m³)Black Carbon (µg/m³)0.5
Nitrogen Dioxide (ppb)NO2 (ppb)

What you can do

Whether you only have a few seconds or you want to devote more time to reducing air pollution, 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. (Learn more about pollution complaints from the California Air Resources Board Environmental Justice site.)
  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 expanding hyperlocal air quality mapping for communities everywhere. If you want to request that we start mapping in your community, please share your zip code below.