Abstract
Polycyclic aromatic hydrocarbons (PAH) were measured in the urban air of Stockholm. Samples were collected by high volume sampling at the sidewalk of two streets, Sveavaegen and Hornsgatan. Detailed analysis of the PAH content was performed. In this investigation particulate associated and semivolatile PAH were measured. The two phases were sampled by using glass fibre filter and polyurethane foam (PUF) adsorbent respectively. More than 100 PAH compounds were detected, of which 35 components were quantified. The average total exposure to these components are in the range of 200-250 ng/m{sup 3} in the three series. By average they constituted 50% of the particulate phase PAH, 80% of the semivolatile phase PAH and 70% of the total detected PAH. Between 73-84% of the total PAH content was found in the semivolatile phase and between 16-27% was found in the particulate phase. The concentration of PAH decreased with 25-50% during holidays when compared to weekdays. This was related to a decrease in traffic intensity. If only the particle associated PAH fraction is considered, the concentration of PAH at Hornsgatan have decreased compared to measurements from 1983, while the concentrations at Sveavaegen were at the same levels when compared to measurements from 1985. The
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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 at two busy streets; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 2 - PAC i Stockholms gatumiljoe. Halter av PAH vid tvaa kraftigt trafikerade gator.
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 at two busy streets; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 2 - PAC i Stockholms gatumiljoe. Halter av PAH vid tvaa kraftigt trafikerade gator.
Sweden.
Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L.
1992.
"Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH at two busy streets; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 2 - PAC i Stockholms gatumiljoe. Halter av PAH vid tvaa kraftigt trafikerade gator."
Sweden.
@misc{etde_10142901,
title = {Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH at two busy streets; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 2 - PAC i Stockholms gatumiljoe. Halter av PAH vid tvaa kraftigt trafikerade gator}
author = {Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L}
abstractNote = {Polycyclic aromatic hydrocarbons (PAH) were measured in the urban air of Stockholm. Samples were collected by high volume sampling at the sidewalk of two streets, Sveavaegen and Hornsgatan. Detailed analysis of the PAH content was performed. In this investigation particulate associated and semivolatile PAH were measured. The two phases were sampled by using glass fibre filter and polyurethane foam (PUF) adsorbent respectively. More than 100 PAH compounds were detected, of which 35 components were quantified. The average total exposure to these components are in the range of 200-250 ng/m{sup 3} in the three series. By average they constituted 50% of the particulate phase PAH, 80% of the semivolatile phase PAH and 70% of the total detected PAH. Between 73-84% of the total PAH content was found in the semivolatile phase and between 16-27% was found in the particulate phase. The concentration of PAH decreased with 25-50% during holidays when compared to weekdays. This was related to a decrease in traffic intensity. If only the particle associated PAH fraction is considered, the concentration of PAH at Hornsgatan have decreased compared to measurements from 1983, while the concentrations at Sveavaegen were at the same levels when compared to measurements from 1985. The individual PAH measurements correlate to traffic intensity. Thus, these parameters could not be used to estimate the PAH exposure. Further, temperature seemed to have an extensive influence on the distribution between particulate- and semivolatile phase. Due to temperature the ratio gaseous/particulate PAH varied between 2- 8. This variation in distribution can be a real distribution of PAH between the phases in the air, but can as well be an effect of the sampling procedure. To determine the actual distribution in the air, the sampling has to be performed by using a denuder technique. 9 refs, 12 figs, 6 tabs}
place = {Sweden}
year = {1992}
month = {Dec}
}
title = {Polycyclic aromatic compounds (PAC) in working environments. Levels of PAH at two busy streets; Polycykliska aromatiska foereningar (PAC) i arbetsmiljoe; 2 - PAC i Stockholms gatumiljoe. Halter av PAH vid tvaa kraftigt trafikerade gator}
author = {Oestman, C, Nilsson, Ulrika, Carlsson, Haakan, Andersson, Ingmarie, and Fahlgren, L}
abstractNote = {Polycyclic aromatic hydrocarbons (PAH) were measured in the urban air of Stockholm. Samples were collected by high volume sampling at the sidewalk of two streets, Sveavaegen and Hornsgatan. Detailed analysis of the PAH content was performed. In this investigation particulate associated and semivolatile PAH were measured. The two phases were sampled by using glass fibre filter and polyurethane foam (PUF) adsorbent respectively. More than 100 PAH compounds were detected, of which 35 components were quantified. The average total exposure to these components are in the range of 200-250 ng/m{sup 3} in the three series. By average they constituted 50% of the particulate phase PAH, 80% of the semivolatile phase PAH and 70% of the total detected PAH. Between 73-84% of the total PAH content was found in the semivolatile phase and between 16-27% was found in the particulate phase. The concentration of PAH decreased with 25-50% during holidays when compared to weekdays. This was related to a decrease in traffic intensity. If only the particle associated PAH fraction is considered, the concentration of PAH at Hornsgatan have decreased compared to measurements from 1983, while the concentrations at Sveavaegen were at the same levels when compared to measurements from 1985. The individual PAH measurements correlate to traffic intensity. Thus, these parameters could not be used to estimate the PAH exposure. Further, temperature seemed to have an extensive influence on the distribution between particulate- and semivolatile phase. Due to temperature the ratio gaseous/particulate PAH varied between 2- 8. This variation in distribution can be a real distribution of PAH between the phases in the air, but can as well be an effect of the sampling procedure. To determine the actual distribution in the air, the sampling has to be performed by using a denuder technique. 9 refs, 12 figs, 6 tabs}
place = {Sweden}
year = {1992}
month = {Dec}
}