Real‐Time Air Quality Monitoring Site
Access Real Time Data
Welcome to the Clean Air Sarnia and Area website! This site provides the public with real-time data about air quality in the Sarnia area.
The site shows real-time air monitoring readings from nine monitoring stations operated by the Ministry of the Environment, Conservation and Parks, the Aamjiwnaang First Nation, and the Sarnia-Lambton Environmental Association.
This site is designed as a tool to provide the community with a clear understanding of ambient air quality in the Sarnia area, and how air quality compares to Ontario's standards.
Resources are provided to help the community understand the science of air quality and how air monitoring systems work.
We invite you to explore the data and resources provided to learn more about air quality in the Sarnia area, and how you can become involved with the Clean Air Sarnia and Area initiative.
Learn how to check the real-time air monitoring data from the Clean Air Sarnia and Area (CASA) website or how to look up and download air monitoring data from a previous time period.
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CASA was formed in September 2015, and works to improve air quality in the Sarnia area by:
Working towards improving Sarnia's air quality!
Air quality data on this website are automatically polled from the Clean Air Sarnia and Area monitoring network and are intended for public awareness. Because the data is real time, they have not undergone complete quality control and quality assurance procedures, and so they may contain errors and are subject to change. The real-time air quality data on this web page are considered "unverified data" and should not be used in published documents.
Data integrity and validity may be affected by instrument malfunctions, telemetry connectivity, QA/QC requirements, instrument calibration times or power outages.
Real-time air quality data on this website are not meant for emergency response purposes. This website does not replace or supplement the existing emergency notification and response protocols, including My Community Notification Network (MyCNN).
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Air Quality Data Collection/Feed by ROTEK Environmental