Measurements of sulphur dioxide in rural air: data quality issues

Cape, J.N.. 2011 Measurements of sulphur dioxide in rural air: data quality issues. Edinburgh, NERC/Centre for Ecology & Hydrology [Internal report] (Unpublished)

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Abstract/Summary

Discrepancies between long-term average SO2 concentrations measured by UV-Fluorescence monitors in the AURN and DELTA denuders from AGA-Net are caused by inadequate performance of UV-F monitors at low concentrations. The hourly data are essential for measuring possible exceedances of limit values – for which the AURN was established – and there is no suggestion that they are no longer fit for that purpose. However, as operated at present they should not be used to provide data for assessing long-term average concentrations. The DELTA denuders in AGA-Net were specifically designed for that purpose, and provide the data needed to assess rural (and suburban) concentrations for model evaluation across the UK.

Item Type:	Other (Internal report)
Programmes:	CEH Topics & Objectives 2009 onwards > Biogeochemistry > BGC Topic 1 - Monitoring and Interpretation of Biogeochemical and Climate Changes > BGC - 1.1 - Monitor concentrations, fluxes, physico-chemical forms of current and emerging pollutants ...
CEH Sections:	Billett
Funders/Sponsors:	NERC
Additional Keywords:	sulphur dioxide, rural air, monitoring, air quality
NORA Subject Terms:	Ecology and Environment Atmospheric Sciences
Date made live:	31 Aug 2012 14:50
URI:	http://nora.nerc.ac.uk/id/eprint/19403

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