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Ammonia emissions in Europe, part II: How ammonia emission abatement strategies affect secondary aerosols
Abstract In central Europe, ammonium sulphate and ammonium nitrate make up a large fraction of fine particles which pose a threat to human health. Most studies on air pollution through particulate matter investigate the influence of emission reductions of sulphur- and nitrogen oxides on aerosol concentration. Here, we focus on the influence of ammonia (NH3) emissions. Emission scenarios have been created on the basis of the improved ammonia emission parameterization implemented in the SMOKE for Europe and CMAQ model systems described in part I of this study. This includes emissions based on future European legislation (the National Emission Ceilings) as well as a dynamic evaluation of the influence of different agricultural sectors (e.g. animal husbandry) on particle formation. The study compares the concentrations of NH3, , NO3 -, sulphur compounds and the total concentration of particles in winter and summer for a political-, technical- and behavioural scenario. It was found that a reduction of ammonia emissions by 50% lead to a 24% reduction of the total PM2.5 concentrations in northwest Europe. The observed reduction was mainly driven by reduced formation of ammonium nitrate. Moreover, emission reductions during winter had a larger impact than during the rest of the year. This leads to the conclusion that a reduction of the ammonia emissions from the agricultural sector related to animal husbandry could be more efficient than the reduction from other sectors due to its larger share in winter ammonia emissions.
Highlights We studied the influence of ammonia emissions on the formation of secondary aerosols. We created 4 emission scenarios. Scenarios are based on NEC, technical feasibility and agricultural sectors. 50% emission reduction leads to up to 25% reduction of total PM2.5 concentrations in winter. Ammonia reduction in the animal husbandry agricultural sector is highly efficient.
Ammonia emissions in Europe, part II: How ammonia emission abatement strategies affect secondary aerosols
Abstract In central Europe, ammonium sulphate and ammonium nitrate make up a large fraction of fine particles which pose a threat to human health. Most studies on air pollution through particulate matter investigate the influence of emission reductions of sulphur- and nitrogen oxides on aerosol concentration. Here, we focus on the influence of ammonia (NH3) emissions. Emission scenarios have been created on the basis of the improved ammonia emission parameterization implemented in the SMOKE for Europe and CMAQ model systems described in part I of this study. This includes emissions based on future European legislation (the National Emission Ceilings) as well as a dynamic evaluation of the influence of different agricultural sectors (e.g. animal husbandry) on particle formation. The study compares the concentrations of NH3, , NO3 -, sulphur compounds and the total concentration of particles in winter and summer for a political-, technical- and behavioural scenario. It was found that a reduction of ammonia emissions by 50% lead to a 24% reduction of the total PM2.5 concentrations in northwest Europe. The observed reduction was mainly driven by reduced formation of ammonium nitrate. Moreover, emission reductions during winter had a larger impact than during the rest of the year. This leads to the conclusion that a reduction of the ammonia emissions from the agricultural sector related to animal husbandry could be more efficient than the reduction from other sectors due to its larger share in winter ammonia emissions.
Highlights We studied the influence of ammonia emissions on the formation of secondary aerosols. We created 4 emission scenarios. Scenarios are based on NEC, technical feasibility and agricultural sectors. 50% emission reduction leads to up to 25% reduction of total PM2.5 concentrations in winter. Ammonia reduction in the animal husbandry agricultural sector is highly efficient.
Ammonia emissions in Europe, part II: How ammonia emission abatement strategies affect secondary aerosols
Backes, Anna M. (author) / Aulinger, Armin (author) / Bieser, Johannes (author) / Matthias, Volker (author) / Quante, Markus (author)
Atmospheric Environment ; 126 ; 153-161
2015-11-18
9 pages
Article (Journal)
Electronic Resource
English
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