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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Fitzpatrick, M. Jennings, S. G. Healy, T. Barry, E. Allen, A. G. Wright, E. Yin, J. Harrison, R. M. Ceburnis, D. |
| Copyright Year | 2006 |
| Abstract | An intensive two month measurement campaign has been performed during a two year study of major component composition of urban PM10 and PM2.5 in Ireland (J. Yin, A. G. Allen, R. M. Harrison, S. G. Jennings, E. Wright, M. Fitzpatrick, T. Healy, E. Barry, D. Ceburnis and D. McCusker, Atmos. Res., 2005, 78(3–4), 149–165). Measurements included size-segregated mass, soluble ions, elemental carbon (EC) distributions, fine and coarse fraction organic carbon (OC) and major gases along with standard meteorological measurements. The study revealed that urban emissions in Ireland had mainly a local character and therefore were confined within a limited area of 20–30 km radius, without significantly affecting regional air quality. Gaseous measurements have shown that urban emissions in Ireland had clear, but fairly limited influence on the regional air quality due to favorable mixing conditions at higher wind speeds, in particular from the western sector. Size-segregated mass and chemical measurements revealed a clear demarcation size between accumulation and coarse modes at about 0.8 μm which was constant at all sites. Carbonaceous compounds at the urban site accounted for up to 90% of the particle mass in a size range of 0.066–0.61 μm. Nss SO42− concentrations in PM2.5 were only slightly higher at the urban site compared to the rural or coastal sites, while NO3− and NH4+ concentrations were similar at the urban and coastal sites, but were a factor of 2 to 3 higher than at the rural site. OC was highly variable between the sites and revealed clear seasonal differences. Natural or biogenic OC component accounted for <10% in winter and up to 30% in summer of the PM2.5 OC at urban sites. A contribution of biogenic OC component to PM2.5 OC mass at rural site was dominant. |
| Starting Page | 479 |
| Ending Page | 487 |
| Page Count | 9 |
| File Format | HTM / HTML PDF |
| ISSN | 14640325 |
| Volume Number | 8 |
| Issue Number | 4 |
| Journal | Journal of Environmental Monitoring |
| DOI | 10.1039/b516029d |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Subscribed |
| Subject Keyword | Atmos EC Yin Allen Harrison Jennings Wright Fitzpatrick Healy Barry Ceburnis McCusker Ireland Particulates Republic of Ireland Carbon Old Chinese Micrometre Biogenic substance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law |
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