Research output: Contribution to Journal/Magazine › Journal article › peer-review
Validation of a passive atmospheric deposition sampler for polybrominated diphenyl ethers. / Gocht, Tilman; Moeckel, Claudia; Chaemfa, Chakra et al.
In: Journal of Environmental Monitoring, Vol. 9, No. 11, 2007, p. 1176-1182.Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Validation of a passive atmospheric deposition sampler for polybrominated diphenyl ethers.
AU - Gocht, Tilman
AU - Moeckel, Claudia
AU - Chaemfa, Chakra
AU - Thomas, Gareth O.
AU - Jones, Kevin C.
PY - 2007
Y1 - 2007
N2 - An atmospheric deposition sampler was validated with respect to polybrominated diphenyl ethers (PBDEs), a compound group that is widely used as flame retardants in many types of consumer products. The deposition sampler consists of an adsorption cartridge that is connected to a glass funnel. Extraction tests with spiked cartridges using soxhlet extraction with acetone revealed recoveries of >80% for all of the investigated PBDEs. Once adsorbed, PBDEs are stable, as proven by extractions of spiked cartridges that were stored outdoors and collected after different periods of time, up to 84 days. High recoveries indicate that degradation of adsorbed PBDEs does not play a role under realistic field conditions. Bulk deposition rates of PBDEs were determined in a field test with 3 replicates, and a possible breakthrough of target compounds was assessed in the field using a second adsorption cartridge in series. No breakthrough of target compounds could be observed within a sampling period of 61 days, and a bulk deposition rate of approximately 1 ng m–2 day–1 for the sum of all analysed PBDEs was measured. The highest deposition rates were measured for octa-brominated congeners, followed by BDEs 99, 183, 153, and 47. Overall, the sampler was successfully validated regarding the atmospheric deposition of PBDEs.
AB - An atmospheric deposition sampler was validated with respect to polybrominated diphenyl ethers (PBDEs), a compound group that is widely used as flame retardants in many types of consumer products. The deposition sampler consists of an adsorption cartridge that is connected to a glass funnel. Extraction tests with spiked cartridges using soxhlet extraction with acetone revealed recoveries of >80% for all of the investigated PBDEs. Once adsorbed, PBDEs are stable, as proven by extractions of spiked cartridges that were stored outdoors and collected after different periods of time, up to 84 days. High recoveries indicate that degradation of adsorbed PBDEs does not play a role under realistic field conditions. Bulk deposition rates of PBDEs were determined in a field test with 3 replicates, and a possible breakthrough of target compounds was assessed in the field using a second adsorption cartridge in series. No breakthrough of target compounds could be observed within a sampling period of 61 days, and a bulk deposition rate of approximately 1 ng m–2 day–1 for the sum of all analysed PBDEs was measured. The highest deposition rates were measured for octa-brominated congeners, followed by BDEs 99, 183, 153, and 47. Overall, the sampler was successfully validated regarding the atmospheric deposition of PBDEs.
U2 - 10.1039/b709341a
DO - 10.1039/b709341a
M3 - Journal article
VL - 9
SP - 1176
EP - 1182
JO - Journal of Environmental Monitoring
JF - Journal of Environmental Monitoring
SN - 1464-0325
IS - 11
ER -