Comparison of Particulate Matter (PM10) Monitoring Using Beta Attenuation Monitor (BAM) and Simple Instrument

Full Text PDF PDF
Author(s) Zul Azmi Mohtar | Noor Faizah Fitri Md Yusof | Nor Azam Ramli | Ahmad Shukri Yahya
Pages 358-367
Volume 3
Issue 3
Date March, 2013
Keywords Quantile regression, Direct reading monitor, correction factor (k)

Abstract

This research focused on comparing PM10 mass concentration record generated by two co-located particulate monitors, Beta Attenuation Monitor (BAM) and Direct Reading Monitor (DRM), operating outdoors at Perai, Penang. DRM record were adjusted to predict BAM with a correction factor k derived from co-located BAM and DRM at a research site to make data comparable in real terms. Predicted BAM records were obtained using quantile regression which is Method A (5 groups of percentile). The k was successfully identified for five (5) groups of percentile for Method A and monitoring record were treated using two techniques and named as Record 1 and Record 2. The best k was selected for each group of percentile. In Perai, R2 value is higher (0.9170) for Record 1. Conversely, Record 2 shows lower R2 value, which is 0.8324. A simple monitor now can be used to produce reliable direct reading real time particulate matter measurement.

< Back to March Issue