Ambient air levels of PAHs in Finland compared to other countries
Alam, Md. Jahangir (2010)
Alam, Md. Jahangir
2010
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2023113033025
https://urn.fi/URN:NBN:fi:amk-2023113033025
Tiivistelmä
Polycyclic aromatic hydrocarbons are often by product of combustion. In this study, concentrations of polycyclic aromatic hydrocarbons were compared with the ambient air levels of Finland and other countries.
The thesis provides a re-evaluation of updated information on the concentrations, burdens and behaviour of polycyclic aromatic hydrocarbons (PAHs) in the ambient air, with orientation to the historical trends in PAH.
The EN 15549:2008 standard is an air quality standard method for the dimension of the concentration of benzo(a)pyrene(BaP) m air. With the same method, also other concentrations can be measured. It is a European standard which was also selected for the Finnish national standard. The measurement method involves sampling of BaP, sample analysis and extraction by gas chromatography with mass spectrometric detection or by high performance liquid chromatography with fluorescence detector.
The European Union has ruled that EU countries, benzo(a)pyrene (BaP) is to be used as a marker of PAH. The target value of BaP for European countries is 1 ng/m3 BaP concentrations in Finland are remarkably low compared with other European cities. However, the concentrations of PAHs increase to high levels every now and then during the winter. The EU target value has not been exceeded in previous years.
The thesis provides a re-evaluation of updated information on the concentrations, burdens and behaviour of polycyclic aromatic hydrocarbons (PAHs) in the ambient air, with orientation to the historical trends in PAH.
The EN 15549:2008 standard is an air quality standard method for the dimension of the concentration of benzo(a)pyrene(BaP) m air. With the same method, also other concentrations can be measured. It is a European standard which was also selected for the Finnish national standard. The measurement method involves sampling of BaP, sample analysis and extraction by gas chromatography with mass spectrometric detection or by high performance liquid chromatography with fluorescence detector.
The European Union has ruled that EU countries, benzo(a)pyrene (BaP) is to be used as a marker of PAH. The target value of BaP for European countries is 1 ng/m3 BaP concentrations in Finland are remarkably low compared with other European cities. However, the concentrations of PAHs increase to high levels every now and then during the winter. The EU target value has not been exceeded in previous years.