Winter comparison of TEOM, MiniVol and DustTrak PM sub(10) monitors in a woodsmoke environment

• Published in: Atmospheric environment (1994) Vol. 40; no. 2; pp. 338 - 347
• Main Authors: Kingham, Simon, Durand, Michael, Aberkane, Teresa, Harrison, Justin, Wilson, JGaines, Epton, Michael
• Format: Journal Article
• Language: English
• Published: 01.01.2006
• Subjects: New Zealand, South I., Christchurch
• ISSN: 1352-2310
• DOI: 10.1016/j.atmosenv.2005.09.042

This paper compares PM sub(10) mass concentrations data generated by three co- located particulate monitors, the tapered element oscillating microbalance (TEOM sub(40)) (operating at 40 degree C), MiniVol and DustTrak, operating outdoors during winter woodsmoke air pollution (Christchurch, New Zealand). TEOM sub(40) data were adjusted to sub(adj)TEOM sub(40) with an algorithm derived from a co- located TEOM sub(40) and HiVol at a second field site. Corrected and corrected- log sub(e)-transformed data were analyzed with reduced major axis regression. Logged sub(adj)TEOM sub(40) and DustTrak data correlated best (r super(2)=0.81) but the DustTrak required a substantial correction factor to make data comparable in real terms. Consistent over-recording by the DustTrak and under-recording by the TEOM sub(40) were consistent with previously published work. The MiniVol did not correlate well with other instruments (r super(2)=0.62 and 0.53 against the sub(adj)TEOM sub(40) and DustTrak, respectively) but reasons for this cannot be ascertained.