Abstract
Gold-coated denuders have been used to separate gas phase and particulate phase Hg in air samples. The denuders were 65 cm long with a 0.4 cm i.d. and were capable of removing >99.9% of the vapor phase elemental Hg in an air stream at flow rates of about 1 L min−1. Data were obtained at different sampling locations around the city of Göteborg. The concentration of particulate Hg was found to be within the range of 0.11 to 0.57 ng m−3, which corresponds to 2.8 to 16.9% of the total airborne Hg. Positive correlations between the concentration of particulate Hg and that of soot and suspended particles as well as a negative correlation between the concentration of particulate Hg and relative humidity were observed.
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Xiao, Z.F., Munthe, J. & Lindqvist, O. Sampling and determination of gaseous and particulate mercury in the atmosphere using gold-coated denuders. Water, Air, and Soil Pollution 56, 141–151 (1991). https://doi.org/10.1007/BF00342268
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DOI: https://doi.org/10.1007/BF00342268