Field comparison of passive air samplers with reference monitors for ambient volatile organic compounds and nitrogen dioxide under week-long integrals.
This study evaluates performance of nitrogen dioxide (NO2) and volatile organic compound (VOC) passive samplers with corresponding reference monitors at two sites in the Detroit, Michigan area during the summer of 2005. Ogawa passive NO2 samplers and custom-made, re-useable Perkin-Elmer (PE) tubes with Carbopack X sorbent for VOCs were deployed under week-long sampling periods for six weeks. Precise results (5% relative standard deviation, RSD) were found for NO2 measurements from collocated Ogawa samplers. Reproducibility was also good for duplicate PE tubes for benzene, toluene, ethylbenzene, and xylene isomers (BTEX species, all < or = 6% RSD). As seen in previous studies, comparison of Ogawa NO2 samplers with reference chemiluminescence measurements suggested good agreement. Generally good agreement was also found between the PE tubes and reference methods for BTEX species.
Mukerjee
Shaibal
S
National Exposure Research Laboratory E205-02, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
Oliver
Karen D
KD
Seila
Robert L
RL
Jacumin
Henry H
HH
Croghan
Carry
C
Daughtrey
E Hunter
EH
Neas
Lucas M
LM
Smith
Luther A
LA
D000327:Adsorption; D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D004784:Environmental Monitoring / Q000295:instrumentation* / Q000379:methods; D008824:Michigan; D009585:Nitrogen Dioxide / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D013997:Time Factors; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000737:chemistry
D000393:Air Pollutants; D055549:Volatile Organic Compounds; D009585:Nitrogen Dioxide