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GonzalezBenitez_etal(2009)AtmEnv43_4887_ACCEPTED_MANUSCRIPT.pdf502.91 kBAdobe PDFView/Open
Title: Atmospheric nitrogen deposition in south-east Scotland: quantification of the organic nitrogen fraction in wet, dry and bulk deposition
Authors: Gonzalez Benitez, Juan M
Cape, J Neil
Heal, Mathew R
van Dijk, Netty
Vidal Diaz, Alberto
Issue Date: 2009
Citation: González Benítez, J.M., Cape, J.N., Heal, M.R., van Dijk, N. and Vidal Diaz, A. (2009) Atmospheric nitrogen deposition in south-east Scotland: quantification of the organic nitrogen fraction in wet, dry and bulk deposition, Atmospheric Environment 43, 4087-4094.
Publisher: Elsevier
Abstract: 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 31°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.
Sponsor(s): DEFRA
Keywords: water soluble organic nitrogen
reactive nitrogen
bulk deposition
wet deposition
dry deposition
ISBN: 1352-2310
Appears in Collections:Chemistry publications

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