Jump to main content
Jump to site search

Issue 6, 2011
Previous Article Next Article

An analysis of total gaseous mercury (TGM) concentrations across the UK from a rural sampling network

Author affiliations

Abstract

Total gaseous mercury was collected at ten sites, which comprise part of the UK rural heavy metals monitoring network, between 2005 and 2008. Using the gold amalgam technique to capture total gaseous mercury, samples were analysed using a Tekran 2537A mercury vapour analyser. The data showed no upward or downward trend in atmospheric mercury concentrations over the period, with 4 year average concentrations between 1.3 and 1.9 ng m−3, which are in line with other studies' observed northern hemispheric background concentrations of between 1.5 and 1.7 ng m−3. Using data from nine of the sites, we were able to show seasonality within the data and through kriging we were able to interpolate the TGM concentrations over the UK, revealing a south-east to north-west declining concentration gradient. Using continuous speciated mercury measurements from one of the network sites, we show through wind sector analysis and air-mass back trajectories that this spatial trend is likely to be due to air masses moving over the UK from continental Europe on easterly winds. The levels of TGM recorded in the south-east of the UK also more closely match observed background TGM levels on the continent, which could indicate that the TGM concentrations from the north of the UK are a better reflection of the true North Atlantic atmospheric mercury background level.

Graphical abstract: An analysis of total gaseous mercury (TGM) concentrations across the UK from a rural sampling network

Back to tab navigation

Publication details

The article was received on 05 Aug 2010, accepted on 23 Mar 2011 and first published on 19 Apr 2011


Article type: Paper
DOI: 10.1039/C0EM00403K
Citation: J. Environ. Monit., 2011,13, 1653-1661
  •   Request permissions

    An analysis of total gaseous mercury (TGM) concentrations across the UK from a rural sampling network

    J. Kentisbeer, D. Leaver and J. N. Cape, J. Environ. Monit., 2011, 13, 1653
    DOI: 10.1039/C0EM00403K

Search articles by author

Spotlight

Advertisements