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EPA \ TAQMN \ Air Quality Monitoring \ Instrument database \ Suspended particles(PM10)-quality of the law of inertia

Suspended particles(PM10)-quality of the law of inertia

The analyzing instrument designed with mass inertia can be used to measure the concentration of pollutants (PM10) with particle diameters under 10 micrometers (μm) within the air. The principle is using the micro-balance (oscillation theory) to measure the weight of filter paper, which is directly installed on the balance. When the sample air goes through the filter paper (there are exhaust pipes behind the filter paper), the weight of filter paper will be changed due to the gathering of PM10 from the air. Through this change of weight, the system can compute the concentration of PM10 in the air. Before the air is imported into the system by the pump for analysis, it needs the aid from the sampler to remove the non-PM10 substances in the air and the water that would interfere with the analysis.


Instruments measured the concentration of PM10 of the process (the quality of law of inertia)

last update : 2017/07/31

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