Community Air Monitoring Project

We’re monitoring air quality in the Carquinez Strait communities (Rodeo, Crockett, & Vallejo)!

Would you be interested in having an air monitor installed on your property? Email us at rodeocitizens@gmail.com.

Sign-up to stay informed on Community Forums starting early 2026! https://forms.gle/ckV3z3q38JoPzzveA

FAQ

Question 1: What is this project?

This is our community’s project to understand the air we breathe in Rodeo, Crockett, Vallejo, and surrounding areas. Funded by a state grant (California Air Resources Board, or CARB), this is a partnership between the Rodeo Citizens Association (RCA), Citizens Air Monitoring Network (CAMN), Contra Costa Resource Conservation District (CCRCD), and Hyphae Labs. The goal is to understand and document local air pollution—specifically fine particulate matter (PM2.5)—by combining advanced wind and terrain modeling with a network of air sensors and air monitors. The goal is simple: to know exactly what’s in our air so we can protect our health, our families, and advocate for cleaner air together.

Question 2: Where will the sensors go?

We need to place sensors in specific spots to get the full picture. We’re looking at three main types of locations across Rodeo, Crockett, Vallejo, and Hercules:

  • High Points for “Hubs”: We need 1-2 high locations (like hilltops or tall buildings) to act as central receivers for data. Examples: Crockett Hills Regional Park, Suribachi Hill
  • Wind Sensor Lines: We’ll create two main “listening lines” of wind and pollution sensors. One line will follow the common wind path from the refinery toward Crockett and Vallejo. Another will cut across neighborhoods. These need clear, unobstructed spots in Rodeo, Crockett, & Vallejo.
  • PurpleAir Sensors: We’ll place smaller air quality monitors at key community spots across Rodeo, Crockett & Vallejo—especially places you’ve told us have concerns.

Question 3: What will the sensor look like?

Example of a wind sensor mounted on a street pole

Question 4a: I own a home, business, or property. Can I host a sensor?

Yes! We need your help. Hosting a sensor is a direct way to contribute to community science.

  • What we’re looking for:
    • Sensors require a sturdy mounting point, access to power (or solar panels), and clear exposure to the air.
  • Where?
    • Streetlight poles (preferred because they are elevated, secure, and widely available). 
    • Building facades, rooftops, or balconies, with permission from the property owner.
    • Freestanding posts, especially in open areas or parks. 
    • Fences or utility structures, if they provide good airflow and secure mounting.
    • Trees in some cases can be used if sunlight or power is available. 
    • We can in some places potentially consider installing freestanding mobile structures 
  • How to get started? Please contact us! Do you know someone who might be interested? Sent this information to them!

Question 4b: How long would the sensor be on my property?

About 1.5-2 years.

Question 5: How else can I get involved?

  • Attend our Community Forums: Gain knowledge on local air quality and stay informed on the health of your community. Community Forums will begin in early 2026, please fill out this form to sign up for reminders: https://forms.gle/mnuZZFRLmyVw6XREA
  • Be a Community Scientist: Help choose where to put sensors, join installation workdays, or learn to check the data dashboard. We’ll have fun field trips and workdays!
  • Spread the Word: Talk to your neighbors, landlords, or local business owners. Do you know someone with a great rooftop in Rodeo & Crockett or a good pole in Vallejo? Connect us! Email us at rodeocitizens@gmail.com.