The effect of varying primary emissions on the concentrations of inorganic aerosols predicted by the enhanced UK Photochemical Trajectory Model

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@article{a12cc60076864dd48b31be1d30ff5c7e,
title = "The effect of varying primary emissions on the concentrations of inorganic aerosols predicted by the enhanced UK Photochemical Trajectory Model",
abstract = "An enhanced Photochemical Trajectory Model (PTM) has been used to simulate concentrations of secondary inorganic aerosol (for the purposes of this work, sulphate, nitrate, chloride and ammonium) in PM over a two-month period at a rural site in central southern England (Harwell). Judged against a base year of 2007, emissions of precursor gases, SO, NO and NH have been varied over plausible ranges, occurring across the UK only, mainland Europe only, or the whole of Europe. The model is able to reproduce observed non-linearities and shows that abatement is less than proportional in all cases. Additionally, abatement of sulphur dioxide leads to increased nitrate concentrations. The combination of a weak response of nitrate to reductions in NO emissions, and the effect of sulphur dioxide reductions in increasing nitrate is consistent with the very small recent observed trends in nitrate concentrations over the UK. A scenario for 2020 in which emissions of SO, NO and NH fall to 64%, 75% and 96% respectively of their 2007 baseline levels across the whole of Europe shows a reduction of 2 μg m in secondary inorganic aerosol which is 13% below the baseline case for a two month period in 2007, due mostly to a fall in sulphate and ammonium. As this was a relatively high pollution period, it is estimated that over a full year, the reduction is more likely to be around 1 μg m.",
keywords = "Secondary inorganic aerosol, Sulphate, Nitrate, Trajectory model",
author = "R.M. Harrison and Alan Jones and D.C.S. Beddows and R.G. Derwent",
note = "Copyright 2013 Elsevier B.V., All rights reserved.",
year = "2013",
month = apr,
day = "1",
doi = "10.1016/j.atmosenv.2012.12.016",
language = "English",
volume = "69",
pages = "211--218",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The effect of varying primary emissions on the concentrations of inorganic aerosols predicted by the enhanced UK Photochemical Trajectory Model

AU - Harrison, R.M.

AU - Jones, Alan

AU - Beddows, D.C.S.

AU - Derwent, R.G.

N1 - Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013/4/1

Y1 - 2013/4/1

N2 - An enhanced Photochemical Trajectory Model (PTM) has been used to simulate concentrations of secondary inorganic aerosol (for the purposes of this work, sulphate, nitrate, chloride and ammonium) in PM over a two-month period at a rural site in central southern England (Harwell). Judged against a base year of 2007, emissions of precursor gases, SO, NO and NH have been varied over plausible ranges, occurring across the UK only, mainland Europe only, or the whole of Europe. The model is able to reproduce observed non-linearities and shows that abatement is less than proportional in all cases. Additionally, abatement of sulphur dioxide leads to increased nitrate concentrations. The combination of a weak response of nitrate to reductions in NO emissions, and the effect of sulphur dioxide reductions in increasing nitrate is consistent with the very small recent observed trends in nitrate concentrations over the UK. A scenario for 2020 in which emissions of SO, NO and NH fall to 64%, 75% and 96% respectively of their 2007 baseline levels across the whole of Europe shows a reduction of 2 μg m in secondary inorganic aerosol which is 13% below the baseline case for a two month period in 2007, due mostly to a fall in sulphate and ammonium. As this was a relatively high pollution period, it is estimated that over a full year, the reduction is more likely to be around 1 μg m.

AB - An enhanced Photochemical Trajectory Model (PTM) has been used to simulate concentrations of secondary inorganic aerosol (for the purposes of this work, sulphate, nitrate, chloride and ammonium) in PM over a two-month period at a rural site in central southern England (Harwell). Judged against a base year of 2007, emissions of precursor gases, SO, NO and NH have been varied over plausible ranges, occurring across the UK only, mainland Europe only, or the whole of Europe. The model is able to reproduce observed non-linearities and shows that abatement is less than proportional in all cases. Additionally, abatement of sulphur dioxide leads to increased nitrate concentrations. The combination of a weak response of nitrate to reductions in NO emissions, and the effect of sulphur dioxide reductions in increasing nitrate is consistent with the very small recent observed trends in nitrate concentrations over the UK. A scenario for 2020 in which emissions of SO, NO and NH fall to 64%, 75% and 96% respectively of their 2007 baseline levels across the whole of Europe shows a reduction of 2 μg m in secondary inorganic aerosol which is 13% below the baseline case for a two month period in 2007, due mostly to a fall in sulphate and ammonium. As this was a relatively high pollution period, it is estimated that over a full year, the reduction is more likely to be around 1 μg m.

KW - Secondary inorganic aerosol

KW - Sulphate

KW - Nitrate

KW - Trajectory model

UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-84872459029&md5=27e34728bc39198b3bb64b059ca84e5c

U2 - 10.1016/j.atmosenv.2012.12.016

DO - 10.1016/j.atmosenv.2012.12.016

M3 - Article

AN - SCOPUS:84872459029

VL - 69

SP - 211

EP - 218

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

ER -