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Field comparison of cyclonic separator and mass inertial impactor for PM10 monitoring

George, KV, Patil, DD, Kumar, P and Alappat, BJ (2012) Field comparison of cyclonic separator and mass inertial impactor for PM10 monitoring Atmospheric Environment, 60. pp. 247-252.

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Monitoring of ambient PM10 concentrations was carried out using two co–located samplers at 10 different locations over the three seasons (summer, winter and post–monsoon) in Delhi, India. The samplers used for the study were the high volume sampler fitted with a cyclone (commonly known in India as respirable particulate matter sampler or RPM sampler), and a 4–channel speciation sampler (4-SS). The RPM sampler separates the PM10 fraction using centrifugal inertia while the 4-SS separates them using the principle of mass inertial impaction. Comparison of the measured data are made using different graphical techniques and statistical analysis, comprising classical two tailed paired t–test and the criteria recommended by the European Commission working group on particulate matter. The PM10 data monitored by both the samplers showed good overall correlations for the entire data set, with a regression co-efficient value of 0.61. Results indicated that inertial impaction based 4-SS consistently measures higher PM10 concentration compared with the cyclone fitted RPM sampler. Such results were valid for 81% of the total data set and this difference in measured concentrations was ∼66% in the regulatory limit value ranges. Both the samplers have their merits and limitations and hence a conscious choice and appropriate data correction is needed when deploying them for scientific and regulatory monitoring purposes.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
George, KV
Patil, DD
Kumar, P
Alappat, BJ
Date : December 2012
DOI : 10.1016/j.atmosenv.2012.06.026
Uncontrolled Keywords : Ambient air regulations, Cyclone separator, Mass intertial impactor, Particulate matter, PM10 monitoring
Related URLs :
Additional Information : NOTICE: this is the author’s version of a work that was accepted for publication in Atmospheric Environment. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Atmospheric Environment, 60, (2012), DOI 10.1016/j.atmosenv.2012.06.026.
Depositing User : Symplectic Elements
Date Deposited : 09 Oct 2012 09:16
Last Modified : 31 Oct 2017 14:41

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