Support better monitoring
HELP HOLD LOCAL INDUSTRY ACCOUNTABLE TO CLEAN AIR STANDARDS
With the official TCEQ monitor down, Midlothian Breathe is working to complete our citizens' grid of air quality sensors. Current particulate matter (PM) levels are close to exceeding safe air standards, and they already exceed levels recommended by former EPA advisory scientists.
Why do citizens need to take action?
TCEQ — the state regulating agency — employs a single monitor to capture particulate matter (PM) data used to confirm whether industry in our area is complying with current EPA standards. But that monitor was taken down in April 2022 and may not be reinstalled until March 2023. The former monitor location was upwind of the Holcim plant, which is the worst polluter of the three cement plants in our area and one of the worst in Texas. The new monitor location is expected to be further upwind. We need a more representative sampling of air — the health of our children, seniors and medically at-risk population is at stake.
Using PurpleAir sensors, we can create a grid that provides publicly available data in locations that TCEQ does not cover.
What are PurpleAir sensors?
PurpleAir sensors record real-time air quality data that is shared and mapped on purpleair.com. At about the size of a softball, these sensors are mounted outside and are connected to the internet. They use laser particle count technology to measure particulate matter in the air (like cement plant emissions, dust, smoke and other suspended particles).
Information collected with the air sensors is aligned with the EPA Air Quality Index, and is represented using color indicators for different pollutant levels. Graphs of averages over time and comparisons between sensors will provide baselines to identify issues with our local air quality.
What can you do?
We’re currently asking for community support in identifying potential PurpleAir sensor locations. We want to place monitors with hosts who are close to our target locations, determined by our engineer-designed monitoring grid (see map below).
Please help. You'll breathe easier!
Volunteer by emailing email@example.com. And follow us on Facebook.
Overview map of target sites needing air sensors
RED Marker = High priority location, no hosts identified yet
BLUE Marker = Hosts identified but monitors not yet placed
GREEN Marker = Host identified and monitor in the process of being placed