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Decline in atmospheric mercury deposition in London.
J Environ Monit. 2009 Aug; 11(8):1518-22.JE

Abstract

Bulk atmospheric deposition samples were continuously collected using a standard IVL-type mercury (Hg) bulk deposition collector from January 1999 to December 2005 in order to monitor Hg deposition in London. The volume-weighted annual Hg concentrations in deposition gradually declined from 76.0 ng L(-1) in 1999 to 43.8 ng L(-1) in 2005. Correspondingly, Hg fluxes in deposition declined from 45.3 microg m(-2) yr(-1) in 1999 to 15.0 microg m(-2) yr(-1) in 2005. However, this decline in Hg deposition does not agree with trends in UK Hg emissions which are relatively stable over the sampling period. Comparison with contemporaneous data collected at Lochnagar, a remote site in Scotland, suggests that the high Hg concentrations in London deposition are likely to be due to local or regional sources. Surface sediments taken from lakes across London show that the environment has been heavily contaminated by Hg and suggest that Hg re-emission from depositional sinks (e.g. soils, water bodies) may be an important source to London's atmosphere, thereby delaying response to the major reductions in direct emissions to the atmosphere since the 1970s.

Authors+Show Affiliations

Environmental Change Research Centre, University College London, London, UK. hyang@geog.ucl.ac.ukNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19657537

Citation

Yang, Handong, et al. "Decline in Atmospheric Mercury Deposition in London." Journal of Environmental Monitoring : JEM, vol. 11, no. 8, 2009, pp. 1518-22.
Yang H, Berry A, Rose N, et al. Decline in atmospheric mercury deposition in London. J Environ Monit. 2009;11(8):1518-22.
Yang, H., Berry, A., Rose, N., & Berg, T. (2009). Decline in atmospheric mercury deposition in London. Journal of Environmental Monitoring : JEM, 11(8), 1518-22. https://doi.org/10.1039/b904952e
Yang H, et al. Decline in Atmospheric Mercury Deposition in London. J Environ Monit. 2009;11(8):1518-22. PubMed PMID: 19657537.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Decline in atmospheric mercury deposition in London. AU - Yang,Handong, AU - Berry,Alison, AU - Rose,Neil, AU - Berg,Torunn, Y1 - 2009/06/04/ PY - 2009/8/7/entrez PY - 2009/8/7/pubmed PY - 2009/9/25/medline SP - 1518 EP - 22 JF - Journal of environmental monitoring : JEM JO - J Environ Monit VL - 11 IS - 8 N2 - Bulk atmospheric deposition samples were continuously collected using a standard IVL-type mercury (Hg) bulk deposition collector from January 1999 to December 2005 in order to monitor Hg deposition in London. The volume-weighted annual Hg concentrations in deposition gradually declined from 76.0 ng L(-1) in 1999 to 43.8 ng L(-1) in 2005. Correspondingly, Hg fluxes in deposition declined from 45.3 microg m(-2) yr(-1) in 1999 to 15.0 microg m(-2) yr(-1) in 2005. However, this decline in Hg deposition does not agree with trends in UK Hg emissions which are relatively stable over the sampling period. Comparison with contemporaneous data collected at Lochnagar, a remote site in Scotland, suggests that the high Hg concentrations in London deposition are likely to be due to local or regional sources. Surface sediments taken from lakes across London show that the environment has been heavily contaminated by Hg and suggest that Hg re-emission from depositional sinks (e.g. soils, water bodies) may be an important source to London's atmosphere, thereby delaying response to the major reductions in direct emissions to the atmosphere since the 1970s. SN - 1464-0333 UR - https://www.unboundmedicine.com/medline/citation/19657537/Decline_in_atmospheric_mercury_deposition_in_London_ L2 - https://doi.org/10.1039/b904952e DB - PRIME DP - Unbound Medicine ER -