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Atmospheric Nitrogen Deposition in South–East Scotland: Quantification of the Organic Nitrogen Fraction in Wet, Dry and Bulk Deposition

Gonzalez Benitez, Juan M.; Cape, J.Neil; Heal, Mathew R.; van Dijk, Netty; Diez, Alberto Vidal. 2009 Atmospheric Nitrogen Deposition in South–East Scotland: Quantification of the Organic Nitrogen Fraction in Wet, Dry and Bulk Deposition. Atmospheric Environment, 43 (26). 4087-4094. 10.1016/j.atmosenv.2009.04.061

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Abstract/Summary

Water soluble organic nitrogen (WSON) compounds are ubiquitous in precipitation and in the planetary boundary layer, and therefore are a potential source of bioavailable reactive nitrogen. This paper examines weekly rain data over a period of 22 months from June 2005 to March 2007 collected in 2 types of rain collector (bulk deposition and “dry+wet” deposition) located in a semi-rural area 15 km southwest of Edinburgh, UK (N 555144″, W 31219″). Bulk deposition collectors are denoted in this paper as “standard rain gauges”, and they are the design used in the UK national network for monitoring precipitation composition. “Dry+wet” deposition collectors are flushing rain gauges and they are equipped with a rain detector (conductivity array), a spray nozzle, a 2-way valve and two independent bottles to collect funnel washings (dry deposition) and true wet deposition. On average, for the 27 weekly samples with 3 valid replicates for the 2 types of collectors, dissolved organic nitrogen (DON) represented 23% of the total dissolved nitrogen (TDN) in bulk deposition. Dry deposition of particles and gas on the funnel surface, rather than rain, contributed over half of all N-containing species (inorganic and organic). Some discrepancies were found between bulk rain gauges and flushing rain gauges, for deposition of both TDN and DON, suggesting biological conversion and loss of inorganic N in the flushing samplers.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.atmosenv.2009.04.061
Programmes: CEH Topics & Objectives 2009 - 2012 > Biogeochemistry > BGC Topic 1 - Monitoring and Interpretation of Biogeochemical and Climate Changes > BGC - 1.4 - Develop innovative, effective methods for monitoring fluxes, exposure and effects
CEH Topics & Objectives 2009 - 2012 > 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 (to November 2013)
ISSN: 1352-2310
Additional Keywords: Water soluble organic nitrogen, DON, reactive nitrogen, bulk deposition, wet deposition, dry deposition, rain collector
NORA Subject Terms: Ecology and Environment
Atmospheric Sciences
Date made live: 21 Jul 2009 13:48
URI: http://nora.nerc.ac.uk/id/eprint/6988

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