| Concentrations of particulate and gaseous polycyclic aromatic hydrocarbons in London air following a reduction in the lead content of petrol in the United Kingdom. | |
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MedLine Citation:
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PMID: 1539129 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The environmental importance of tropospheric polycyclic aromatic hydrocarbons (PAH) is reviewed. The impact of reducing lead on airborne PAH is indicated and the importance of monitoring both particulate and gaseous-phase PAH is demonstrated. A Brief description of a sampling regime performed from 1985 to 1987 is given. Sampling of 18 PAH was performed and particulate lead concentrations at the kerbside were measured concurrently. Measurements indicate that there is a pronounced seasonality in PAH concentrations and in the distribution of PAH between particulate and gaseous phases. On average, 47% of the PAH measured were in the gaseous phase, indicating the importance of measuring the volatile fraction. The dominance of the common variation of each PAH was also investigated using principal components analysis. An uneven spread of data prior to and following the reduction in lead content, hindered a thorough examination of the effect of this change on PAH concentrations. However, they appeared to indicate only a small change in PAH concentration and this was linked to an increase in aromatic content of the petrol, which was much less than expected. |
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Authors:
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S O Back; M E Goldstone; P W Kirk; J N Lester; R Perry |
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Publication Detail:
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Type: Journal Article; Review |
Journal Detail:
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Title: The Science of the total environment Volume: 111 ISSN: 0048-9697 ISO Abbreviation: Sci. Total Environ. Publication Date: 1992 Jan |
Date Detail:
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Created Date: 1992-03-30 Completed Date: 1992-03-30 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0330500 Medline TA: Sci Total Environ Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 169-99 Citation Subset: IM |
Affiliation:
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Department of Civil Engineering, Imperial College of Science, Technology and Medicine, London, United Kingdom. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants
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analysis* Gasoline / analysis Great Britain Lead / analysis Polycyclic Compounds / analysis* Seasons |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants; 0/Gasoline; 0/Polycyclic Compounds; 7439-92-1/Lead |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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