Suspended Particulate Matter (SPM)
Suspended Particulate Matter (SPM) is solid and liquid particle suspended in ambient air of which particle size is not more than 10 micro-m.
An indicated value as a mass concentration is obtained from the decrease of the frequency of a quartz due to the adhesion of particle. The advantage of piezoelectric balance method is high sensitivity.
An indicated value as a mass concentration is obtained from the decrease of the frequency of a quartz due to the adhesion of particle. The advantage of piezoelectric balance method is high sensitivity.
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