Author： Wallace Lance
Publisher： Taylor & Francis Ltd
ISSN： 1521-7388
Source： Aerosol Science and Technology, Vol.39, Iss.10, 2005-10, pp. : 1015-1025
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
A real-time instrument employing photoelectric emission has been suggested as a semiquantitative tracer of black carbon (BC). The instrument is known as the Photoelectric Aerosol Sensor (PAS) and has been manufactured in Europe since the 1980s. As a test of this relationship, real-time measurements were made using two models of this instrument side by side with two Aethalometers for one year (1998) and for an additional six months (December 1999–May 2000) inside and outside an occupied house in Reston, VA. Four sources, two outdoors and two indoors, were investigated. The outdoor sources included automobile traffic and woodburning; the indoor sources included cooking and candle burning. Correlations between the Aethalometer and both models of PAS instruments for three of the four sources ranged from R 2 = 72% to 85%. For cooking, the earlier PAS Model 1001i using mercury vapor as a UV source was correlated with the Aethalometer for broiled foods, but the later PAS Model 2000 using a krypton chloride excimer lamp showed almost no response. When all sources were combined, both the outdoor PAS 2000 and the indoor PAS 1001i correlated with the corresponding Aethalometers (R 2 = 63%, N = 36,558, p
Related content
Access to resources
Recommend
By Malloy Quentin Nakao Shunsuke Qi Li Austin Rebecca Stothers Clayton
Aerosol Science and Technology, Vol. 43, Iss. 7, 2009-07 ,pp. :