Air Sensors

## Choosing Sensors Often the first step is to look for a sensor for what you're hoping to measure. In the community posts below, we're collecting info on different kinds of air quality sensors, and their: * cost * sensitivity/accuracy * links and documentation Can you afford a sensor? Can it detect what you're looking for? Where can you learn more about it? <br> ### Posts about choosing and evaluating an air sensor [notes:grid:air-sensor-eval] <br> ### Expected ranges and useful detection limits for pollutants of interest This [table]( from an EPA [Air Quality Monitoring and Community Science webinar]( lists the six criteria air pollutants and a couple additional pollutants, with background levels you might see in the environment in the “Range to Expect” column and useful detection limits for sensors. <img style="width: 80%; height: 80%" src="" alt="pollutant ranges"> **** ## Wikis about air sensors [wikis:air-sensors] <br> ## Air sensor projects Public Lab pages and posts tagged `air-sensor-projects` will appear here [nodes:air-sensor-projects] <br> ## Questions [questions:air-sensors] <br> <hr> ## Further reading and resources + Environmental consultant Tim Dye’s “[4 questions to ask before buying an air quality sensor](” neatly summarizes what to consider when choosing an air sensor. + []( lots of information on low-cost sensors for various air pollutants. + [Air Quality Sensor Performance Evaluation Center (AQ-SPEC)]( from the South Coast Air Quality Management District, this program tests and evaluates air sensors “in the field, under ambient conditions, and in the laboratory under controlled environmental conditions.” + [Air Sensor Toolbox]( from the US Environmental Protection Agency, this toolbox includes guidance on how to use air sensors and their data, plus information on sensor performance and evaluation results. ...

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