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Humidity Interference In VOC Measurements

Humidity is a natural phenomenon and is an amount of water vapour present in the atmosphere or in a gas. Water vapour itself is the gaseous state of water and is invisible to the human eye but we have all experienced how uncomfortable high humidity can make you feel.

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In addition to fixed and portable solutions, personal monitoring of volatile organic compounds is a vital component in the protection of worker’s health from the potentially toxic effects of short term high or longer term, lower level repeated exposure. The photoionisation detector (PID) has proven to be an ideal tool but there are considerations when choosing the right instrument.

Humidity comes from water evaporating from lakes and oceans and since warmer water evaporates more quickly, you find the most humid regions closer to warm bodies of water like the Red Sea, the Persian Gulf, and Miami, Florida.