Abstract
The ambient air concentrations of polycyclic aromatic hydrocarbons (PAH) were measured prior to and after the diversion of the through-traffic from a street (Norra Stationsgatan) to a new highway (Norra Laenken) situated 200 meters north from former. Sampling was performed at the sidewalk of the street and in a park area of the Karolinska hospital, 70 meters north from the highway. A high volume sampler equipment was used for filtering about 325 m{sup 3} of air through a glass fibre filter/polyurethane foam adsorbent combination, collecting the particulate associated and semivolatile PAH respectively. A detailed analysis of the PAH content was performed. About 100 PAH components could be detected in the samples. 34 of these PAH were quantified. The analytical procedures has been described in detail elsewhere. The concentrations of PAH at two other busy streets in Stockholm has been measured and the results have been presented elsewhere. The total concentration of PAHs decreased to 50% after the traffic diversion. This decrease was of the same size as the one measured when comparing weekdays and holidays at the street Hornsgatan. During approximately the same period, PAH measurements of a nearby busy street showed no decrease in the levels of PAH. Due
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Citation Formats
Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L.
Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH before and after traffic diversion; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 3 - PAC i Stockholms gatumiljoe. Halter av PAH foere och efter trafikomlaeggning.
Sweden: N. p.,
1992.
Web.
Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, & Fahlgren, L.
Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH before and after traffic diversion; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 3 - PAC i Stockholms gatumiljoe. Halter av PAH foere och efter trafikomlaeggning.
Sweden.
Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L.
1992.
"Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH before and after traffic diversion; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 3 - PAC i Stockholms gatumiljoe. Halter av PAH foere och efter trafikomlaeggning."
Sweden.
@misc{etde_10142898,
title = {Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH before and after traffic diversion; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 3 - PAC i Stockholms gatumiljoe. Halter av PAH foere och efter trafikomlaeggning}
author = {Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L}
abstractNote = {The ambient air concentrations of polycyclic aromatic hydrocarbons (PAH) were measured prior to and after the diversion of the through-traffic from a street (Norra Stationsgatan) to a new highway (Norra Laenken) situated 200 meters north from former. Sampling was performed at the sidewalk of the street and in a park area of the Karolinska hospital, 70 meters north from the highway. A high volume sampler equipment was used for filtering about 325 m{sup 3} of air through a glass fibre filter/polyurethane foam adsorbent combination, collecting the particulate associated and semivolatile PAH respectively. A detailed analysis of the PAH content was performed. About 100 PAH components could be detected in the samples. 34 of these PAH were quantified. The analytical procedures has been described in detail elsewhere. The concentrations of PAH at two other busy streets in Stockholm has been measured and the results have been presented elsewhere. The total concentration of PAHs decreased to 50% after the traffic diversion. This decrease was of the same size as the one measured when comparing weekdays and holidays at the street Hornsgatan. During approximately the same period, PAH measurements of a nearby busy street showed no decrease in the levels of PAH. Due to this it can be stated that the traffic diversion of through-traffic from the street to the highway decreased the PAH levels at the former. Prior to the traffic diversion the PAH concentration pattern measured in the Karolinska hospital area north of the highway exhibited an unusual appearance with rather large concentration differences between the samples. After the diversion the PAH profile exhibited a typical pattern obtained from busy streets in the Stockholm city area. This indicated an influence by nearby vehicle traffic on the air of the park area. 2 refs, 9 figs, 5 tabs}
place = {Sweden}
year = {1992}
month = {Dec}
}
title = {Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH before and after traffic diversion; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 3 - PAC i Stockholms gatumiljoe. Halter av PAH foere och efter trafikomlaeggning}
author = {Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L}
abstractNote = {The ambient air concentrations of polycyclic aromatic hydrocarbons (PAH) were measured prior to and after the diversion of the through-traffic from a street (Norra Stationsgatan) to a new highway (Norra Laenken) situated 200 meters north from former. Sampling was performed at the sidewalk of the street and in a park area of the Karolinska hospital, 70 meters north from the highway. A high volume sampler equipment was used for filtering about 325 m{sup 3} of air through a glass fibre filter/polyurethane foam adsorbent combination, collecting the particulate associated and semivolatile PAH respectively. A detailed analysis of the PAH content was performed. About 100 PAH components could be detected in the samples. 34 of these PAH were quantified. The analytical procedures has been described in detail elsewhere. The concentrations of PAH at two other busy streets in Stockholm has been measured and the results have been presented elsewhere. The total concentration of PAHs decreased to 50% after the traffic diversion. This decrease was of the same size as the one measured when comparing weekdays and holidays at the street Hornsgatan. During approximately the same period, PAH measurements of a nearby busy street showed no decrease in the levels of PAH. Due to this it can be stated that the traffic diversion of through-traffic from the street to the highway decreased the PAH levels at the former. Prior to the traffic diversion the PAH concentration pattern measured in the Karolinska hospital area north of the highway exhibited an unusual appearance with rather large concentration differences between the samples. After the diversion the PAH profile exhibited a typical pattern obtained from busy streets in the Stockholm city area. This indicated an influence by nearby vehicle traffic on the air of the park area. 2 refs, 9 figs, 5 tabs}
place = {Sweden}
year = {1992}
month = {Dec}
}