Field calibration of polyurethane foam (PUF) disk passive air samplers for PCBs and OC pesticides.
Different passive air sampler (PAS) strategies have been developed for sampling in remote areas and for cost-effective simultaneous spatial mapping of POPs (persistent organic pollutants) over differing geographical scales. The polyurethane foam (PUF) disk-based PAS is probably the most widely used. In a PUF-based PAS, the PUF disk is generally mounted inside two stainless steel bowls to buffer the air flow to the disk and to shield it from precipitation and light. The field study described in this manuscript was conducted to: compare performance of 3 different designs of sampler; to further calibrate the sampler against the conventional active sampler; to derive more information on field-based uptake rates and equilibrium times of the samplers. Samplers were also deployed at different locations across the field site, and at different heights up a meteorological tower, to investigate the possible influence of sampler location. Samplers deployed <5m above ground, and not directly sheltered from the wind gave similar uptake rates. Small differences in dimensions between the 3 designs of passive sampler chamber had no discernable effect on accumulation rates, allowing comparison with previously published data.
Chaemfa
Chakra
C
Centre for Chemicals Management and Environmental Science Department, Lancaster Environment Centre, Lancaster University, Lancaster LA14YQ, UK.
Barber
Jonathan L
JL
Gocht
Tilman
T
Harner
Tom
T
Holoubek
Ivan
I
Klanova
Jana
J
Jones
Kevin C
KC
D000393:Air Pollutants / Q000032:analysis*; D002138:Calibration; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D008401:Gas Chromatography-Mass Spectrometry; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D011140:Polyurethanes
D000393:Air Pollutants; D006843:Hydrocarbons, Chlorinated; D011140:Polyurethanes; C028279:polyurethane foam; D011078:Polychlorinated Biphenyls