-><-Whole air sampling is typically done with canisters or Tedlar bags to take a "snapshot" of an entire air sample and test for chemicals that may be present. Grab sampling is a form of whole air sampling. Whole air samplers test for gases and are often used to sample volatile organic compounds (VOCs).
What is whole air sampling?
- Whole air samplers measure gas phase chemicals
- Whole air samplers typically test for 40-100 different chemicals
- Whole air samples are often used as a diagnostic tool to narrow down what you are looking for
How is whole air sampling different from sorbent tube sampling?
When would you need a whole air sample?
- Identifying an unknown smell: You smell something noxious and want to do a test
- Risk assessment and hazard mitigation: You're concerned there's something bad in the air
- Narrowing the scope: You're not sure what you're looking for and want to test for a wide range
- Ambient air monitoring: You want to take a baseline air sample for a given area
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Image credit USEPA Environmental-Protection-Agency
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