Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Mass and number size distributions of particulate matter components: Comparison of an industrial site and an urban background site التوزيع الكتلى والحجمى العددى لتركيبات الغبار العالق: مقارنة بين مكان صناعى ومكان حضرى مرجعى |
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Subject |
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Enviromental sciences |
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Document Language |
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English |
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Abstract |
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Size-resolved composition of particulatematter (PM) sampled in the industrial town of Port Talbot (PT), UK was
determined in comparison to a typical urban background site in Birmingham (EROS). A Micro-Orifice Uniform
Deposit Impactor (MOUDI) sampler was deployed for two separate sampling campaigns with the addition
of a Grimm optical spectrometer at the PT site. MOUDI samples were analysed for water-soluble anions (Cl−,
NO3
− and SO4 2−) and cations (Na+, NH4
+, K+, Mg2+ and Ca2+) and trace metals (Al, V, Cr, Mn, Fe, Cu, Zn, Sb, Ba
and Pb). The PM mass distribution showed a predominance of fine particle (PM2.5) mass at EROS whereas the
PT sampleswere dominated by the coarse fraction (PM2.5-10). SO4 2 −, Cl−, NH4
+, Na+, NO3
−, andCa2+were the predominant
ionic species at both sites while Al and Fe were the metals with highest concentrations at both sites.
Mean concentrations of Cl−, Na+, K+, Ca2+, Mg2+, Cr, Mn, Fe and Zn were higher at PT than EROS due to industrial
and marine influences. The contribution of regional pollution by sulphate, ammonium and nitrate was greater at
EROS relative to PT. The traffic signatures of Cu, Sb, Ba and Pb were particularly prominent at EROS. Overall, PM
at EROS was dominated by secondary aerosol and traffic-related particles while PT was heavily influenced by
industrial activities and marine aerosol. Profound influences of wind direction are seen in the 72-hour data,
especially in relation to the PT local sources. Measurements of particle number in 14 separate size bins plotted
as a function of wind direction and speed are highly indicative of contributing sources, with local traffic dominant
below 0.5 μm, steelworks emissions from 0.5 to 15 μm, and marine aerosol above 15 μm. |
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ISSN |
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0048-9697 |
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Journal Name |
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Science of the Total Environment |
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Volume |
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475 |
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Issue Number |
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1 |
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Publishing Year |
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1435 AH
2014 AD |
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Article Type |
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Article |
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Added Date |
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Wednesday, April 2, 2014 |
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Researchers
| Adewale M. Taiwo | Taiwo, Adewale M. | Researcher | | |
| David C.S. Beddows | Beddows, David C.S. | Researcher | | |
| Zongbo Shi | Shi, Zongbo | Researcher | | |
| Roy M. Harrison | Harrison, Roy M. | Researcher | | r.m.harrison@bham.ac.uk |
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