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How to Detect Benzene in the Air

Benzene is a highly flammable and common chemical found naturally in gasoline, crude oil and cigarettes. Forest fires and volcanoes also emit benzene. Industrial uses of benzene include the production of resins, plastics, nylon, rubber, drugs and pesticides. It has an aromatic sweet odor and evaporates quickly into the air. (References 1)



Ensure no health hazard is present by testing workplaces or buildings with the potential of containing benzene, such as a gas station. Testing the air for benzene requires training and specialized monitors.



If you suspect high levels of benzene gas in the air, you should immediately leave the area and call emergency responders. Testing the air in this situation is too hazardous.

Things You'll Need

  • Air monitor capable of detecting benzene gas
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Instructions

  1. Detecting Benzene

    • 1

      Obtain training on the make and model of air monitor you are using. The manufacturer of your monitor will provide the training or refer you to a qualified instructor. (Reference 2)

    • 2

      Calibrate the air monitor daily according to the manufacturer's instructions. Most often this will be a fresh-air calibration performed away from suspected contaminants. If this is not possible use bottled fresh air.

    • 3

      Turn on the monitor and select the benzene option per the manufacturer's instructions. If using a hand-held monitor, sample the air in several locations noting the results of each test. It is possible the level of benzene could be within safe limits in one area but hazardous in another.

    • 4

      Compare the results to exposure limits set by the Occupational Health and Safety Administration (OSHA). If the benzene level exceeds the safety limits set by OSHA, do not remain in the area. (Reference 3)

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