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A spatially refined monitoring based study of atmospheric nitrogen deposition [An article from: Atmospheric Environment]
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Book Details
Author(s)
B.B. Marner, R.M. Harrison
Publisher
Elsevier
ISBN / ASIN
B000RR1GMM
ISBN-13
978B000RR1GM9
Marketplace
France 🇫🇷
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Description
This digital document is a journal article from Atmospheric Environment, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Atmospheric concentrations of NO"2, HNO"3, NH"3, aerosol NH"4^+ and NO"3^-, and the bulk deposition of NH"4^+ and NO"3^- were measured for two years at ten sites around the West Midlands, UK. Eight of these sites were spread across the 125km^2 Lichfield nitrate vulnerable zone (NVZ). The measured data were interpolated across the area, and by applying land-use specific deposition velocities to the airborne concentrations, seasonal N deposition fluxes to the NVZ were estimated. There was a large spatial variation in deposition flux, driven mainly by land-use, but also by measured concentration gradients. Spatially averaged total flux exhibited a seasonal pattern; peaking in spring-summer. Each measured component contributed a substantial fraction of the total flux, but the importance of each varied seasonally. Oxidised-N and reduced-N fluxes were relatively equal. Annual average flux was approximately 20kgNha^-^1yr^-^1.
Description:
Atmospheric concentrations of NO"2, HNO"3, NH"3, aerosol NH"4^+ and NO"3^-, and the bulk deposition of NH"4^+ and NO"3^- were measured for two years at ten sites around the West Midlands, UK. Eight of these sites were spread across the 125km^2 Lichfield nitrate vulnerable zone (NVZ). The measured data were interpolated across the area, and by applying land-use specific deposition velocities to the airborne concentrations, seasonal N deposition fluxes to the NVZ were estimated. There was a large spatial variation in deposition flux, driven mainly by land-use, but also by measured concentration gradients. Spatially averaged total flux exhibited a seasonal pattern; peaking in spring-summer. Each measured component contributed a substantial fraction of the total flux, but the importance of each varied seasonally. Oxidised-N and reduced-N fluxes were relatively equal. Annual average flux was approximately 20kgNha^-^1yr^-^1.
