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- W1998432466 abstract "Particulate matter (PM10–2.5 and PM2.5–0.1) has been collected over a period of one year in Cork Harbour, Ireland, using a high-volume cascade impactor and polyurethane foam collection substrate. Collected PM2.5–0.1 was analysed for water-soluble inorganic ions and metal content using ion chromatography and inductively coupled plasma-optical emission spectroscopy. On average approximately 50% by mass of the chemical content of PM was identified. The motivation for the study was to assess the potential impact of shipping emissions on air quality in Cork Harbour and City, with a view to informing public health impacts. The average ambient concentration of PM10 between May 2007 and April 2008 was 4.6 µgm− 3 and the maximum concentration measured in one sample, representing a 4 day collection period, was 16 µgm− 3. The major inorganic constituents identified in PM collected in Haulbowline Island in Cork Harbour were sulfate, ammonium, nitrate, chloride and sodium ions, which were mainly attributable to sea salt and secondary inorganic aerosols from regional sources. The results were analysed by principal component analysis for the purpose of source apportionment. Four factors were identified explaining over 80% of the data set variance. The factors were: shipping, sea salt, crustal material and secondary inorganic aerosols (SIA). The smaller size fraction was frequently observed to dominate, as the average concentration was 2.77 µgm− 3 for PM2.5–0.1 compared to 1.9 µgm− 3 for PM10–2.5. Fresh ship plumes were not found to make a significant contribution to primary PM2.5–0.1 concentrations adjacent to the shipping channel. However, this was partially attributed to the ultrafine nature of ship emissions and the majority of the toxic metal content was attributed to emissions associated with heavy oil combustion sources, which include ship engines." @default.
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- W1998432466 date "2010-02-01" @default.
- W1998432466 modified "2023-09-24" @default.
- W1998432466 title "Sources of ambient concentrations and chemical composition of PM2.5–0.1 in Cork Harbour, Ireland" @default.
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- W1998432466 doi "https://doi.org/10.1016/j.atmosres.2009.09.006" @default.
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