Central California Asthma Collaborative

The Central California Asthma Collaborative works across the entire San Joaquin Valley to reduce the burden of asthma and related conditions through education, intervention, policy analysis and advocacy by improving care and reducing air pollution.

The San Joaquin Valley has some of the worst air in the nation. We're working to help everyone breathe easy.

We're using our skills and resources as a community hackerspace to build new technology that will paint a clearer picture of how our air is doing. The data we collect can be analyzed and used to help drive policy decisions that will benefit all of us.

Photo Credit: Gary Kazanjian/AP
Mockup of the network map


SJVAir is a network of low-cost air quality monitors providing real-time PM2.5 data to disadvantaged communities across the San Joaquin Valley. SJVAir is operated by a collaborative of non-profit organizations from Bakersfield to Stockton.

Root Access is developing the technology, both hardware and software, to make this happen:

  • Prototype low-cost IoT air monitors and smart air filters using off-the-shelf microcontrollers and sensors.
  • Cloud-based API and data warehouse to store environmental data collected by air monitors across the San Joaquin Valley.
  • Integration with existing air monitoring networks for a better understanding of the quality of our air.
  • The only real-time air quality alert system in California.
  • Web-based portal for data mapping and analysis.

Air Monitor Testing & Calibration

Root Access provides the space for testing and calibration of CCAC's Purple Air monitors before they're put into the field for data collection.

Configuring a batch of Purple Air monitors before they're tested and calibrated.

Building the air monitor rack on our roof and setting up monitors.

We can test and calibrate up to thirty-six Purple Air monitors at a time.