Question

Give the classification of the sampling methods for gaseous pollutants. In this context, when absorption is done in liquids then what is the collection efficiency?

22 Jan 2025
Answer :
Word Count : 253

Sampling methods for gaseous pollutants can be broadly classified into two categories: active sampling and passive sampling. 

1. Active Sampling: This method involves the use of a pump to actively draw air through a collection medium, typically a filter, adsorbent, or absorbent. It allows for precise control over the flow rate and the volume of air sampled, making it suitable for real-time monitoring ________ __________ _____ ________ _____ _____ _________ _________ ____ ____ _________.
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