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Chemical characteristics and mutagenic activity of PM10 in Torino, a Northern Italian City

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Title: Chemical characteristics and mutagenic activity of PM10 in Torino, a Northern Italian City
Authors: Gilli, G., Traversi, D., Rovere, R., Pignata, C., Schilirò, T. tiziana.schiliro@unito.it
Source: Science of the Total Environment. Oct2007, Vol. 385 Issue 1-3, p97-107. 11p.
Subjects: Particulate matter, Organic compounds, Air pollution, DNA damage, Salmonella typhimurium, Biochemical genetics
Geographic Terms: Turin (Italy), Italy
Abstract: Abstract: Epidemiological studies of particulate matter (PM) have associated PM mass, as well as certain individual components of PM such as secondary particulate with adverse human health effects. For example genotoxic effects attributed to PM may relate to the content of organic compounds but also to the oxidative DNA damage generated by transition metals like iron. However the exact physiochemical mechanism by which PM produces adverse effects is not clear. The aims of this study were to evaluate (1) concentrations of PM10, (2) amounts of bioavailable iron associated with PM10, (3) amounts of secondary particulate expressed as SO4 = and NO3 − and (4) the mutagenic activities of PM10 organic extracts. Sampling was carried out in a meteochemical station located in Torino, a northern Italian city with high levels of PM10. The mean PM10 concentration in the considered period was 46.1±28.8 μg/m3, the iron mean concentration was 0.83 μg/m3 (±0.65 μg/m3) and the bioavailable Fe was 5.7% (±4.4%). The data showed that secondary particulate matter (as sum of sulfates and nitrates) constituted about 47% of PM10 total mass. Both iron and secondary species concentrations were positively associated with PM10 levels. Seasonal variations of PM10 concentration, iron level and secondary species amount were significant. Samples were tested for mutagenicity with Salmonella typhimurium strains TA98 and TA100, with and without metabolic activation and a positive response was observed especially for TA98. There were positive statistical associations between mutagenicity and PM10, bioavailable iron, sulfates and nitrates concentrations. Therefore, these results showed the usefulness of this biological approach for monitoring PM10. [Copyright &y& Elsevier]
Copyright of Science of the Total Environment is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Chemical characteristics and mutagenic activity of PM10 in Torino, a Northern Italian City
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  Data: <searchLink fieldCode="AR" term="%22Gilli%2C+G%2E%22">Gilli, G.</searchLink><br /><searchLink fieldCode="AR" term="%22Traversi%2C+D%2E%22">Traversi, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Rovere%2C+R%2E%22">Rovere, R.</searchLink><br /><searchLink fieldCode="AR" term="%22Pignata%2C+C%2E%22">Pignata, C.</searchLink><br /><searchLink fieldCode="AR" term="%22Schilirò%2C+T%2E%22">Schilirò, T.</searchLink><i> tiziana.schiliro@unito.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Science+of+the+Total+Environment%22">Science of the Total Environment</searchLink>. Oct2007, Vol. 385 Issue 1-3, p97-107. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Particulate+matter%22">Particulate matter</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+compounds%22">Organic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Air+pollution%22">Air pollution</searchLink><br /><searchLink fieldCode="DE" term="%22DNA+damage%22">DNA damage</searchLink><br /><searchLink fieldCode="DE" term="%22Salmonella+typhimurium%22">Salmonella typhimurium</searchLink><br /><searchLink fieldCode="DE" term="%22Biochemical+genetics%22">Biochemical genetics</searchLink>
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  Label: Abstract
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  Data: Abstract: Epidemiological studies of particulate matter (PM) have associated PM mass, as well as certain individual components of PM such as secondary particulate with adverse human health effects. For example genotoxic effects attributed to PM may relate to the content of organic compounds but also to the oxidative DNA damage generated by transition metals like iron. However the exact physiochemical mechanism by which PM produces adverse effects is not clear. The aims of this study were to evaluate (1) concentrations of PM10, (2) amounts of bioavailable iron associated with PM10, (3) amounts of secondary particulate expressed as SO4 = and NO3 − and (4) the mutagenic activities of PM10 organic extracts. Sampling was carried out in a meteochemical station located in Torino, a northern Italian city with high levels of PM10. The mean PM10 concentration in the considered period was 46.1±28.8 μg/m3, the iron mean concentration was 0.83 μg/m3 (±0.65 μg/m3) and the bioavailable Fe was 5.7% (±4.4%). The data showed that secondary particulate matter (as sum of sulfates and nitrates) constituted about 47% of PM10 total mass. Both iron and secondary species concentrations were positively associated with PM10 levels. Seasonal variations of PM10 concentration, iron level and secondary species amount were significant. Samples were tested for mutagenicity with Salmonella typhimurium strains TA98 and TA100, with and without metabolic activation and a positive response was observed especially for TA98. There were positive statistical associations between mutagenicity and PM10, bioavailable iron, sulfates and nitrates concentrations. Therefore, these results showed the usefulness of this biological approach for monitoring PM10. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Science of the Total Environment is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.scitotenv.2007.07.006
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      – Code: eng
        Text: English
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      – SubjectFull: Particulate matter
        Type: general
      – SubjectFull: Organic compounds
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      – SubjectFull: Air pollution
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      – SubjectFull: DNA damage
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      – SubjectFull: Salmonella typhimurium
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      – SubjectFull: Biochemical genetics
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      – SubjectFull: Turin (Italy)
        Type: general
      – SubjectFull: Italy
        Type: general
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      – TitleFull: Chemical characteristics and mutagenic activity of PM10 in Torino, a Northern Italian City
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              Text: Oct2007
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              Y: 2007
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