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A Three Year Study on 14 VOCs at One Site in Rome: Levels, Seasonal Variations, Indoor/Outdoor Ratio and Temporal Trends

Author

Listed:
  • Sergio Fuselli

    (Igiene degli Ambienti di Vita, Dipartimento Ambiente e Connessa Prevenzione Primaria, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italia)

  • Marco De Felice

    (Igiene degli Ambienti di Vita, Dipartimento Ambiente e Connessa Prevenzione Primaria, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italia)

  • Roberta Morlino

    (Igiene degli Ambienti di Vita, Dipartimento Ambiente e Connessa Prevenzione Primaria, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italia)

  • Luigi Turrio-Baldassarri

    (Igiene degli Ambienti di Vita, Dipartimento Ambiente e Connessa Prevenzione Primaria, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma, Italia)

Abstract

Fourteen volatile organic compounds (VOCs)—twelve hydrocarbons and two organochlorine compounds—were monitored both outdoors and indoors for three years at one site in Rome. Results showed that 118 out of 168 indoor seasonal mean values were higher than the corresponding outdoor concentrations. The most relevant source of outdoor hydrocarbons was automotive exhaust emissions. Due to the enforcement of various measures to protect health and the environment, outdoor levels of monoaromatic hydrocarbons decreased about ten fold over 15 years, and aliphatic hydrocarbons also decreased. With the decrease in these outdoor concentrations, indoor air sources are likely to be more relevant for indoor air exposures. Winter outdoor values for monoaromatic hydrocarbons were generally markedly higher than the summer ones. The gradual replacement of the current fleet of circulating cars with new cars complying with EURO 5 standards, further reducing hydrocarbon emissions, may possibly lead to an increase in the observed indoor/outdoor ratios. It is indeed more difficult to remove indoor sources, some of which are still unknown.

Suggested Citation

  • Sergio Fuselli & Marco De Felice & Roberta Morlino & Luigi Turrio-Baldassarri, 2010. "A Three Year Study on 14 VOCs at One Site in Rome: Levels, Seasonal Variations, Indoor/Outdoor Ratio and Temporal Trends," IJERPH, MDPI, vol. 7(10), pages 1-12, October.
    • Handle: RePEc:gam:jijerp:v:7:y:2010:i:10:p:3792-3803:d:9961
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    References listed on IDEAS

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    1. Vincenzo Cocheo & Paolo Sacco & Caterina Boaretto & Emile De Saeger & Pascual Perez Ballesta & Henrik Skov & Eddy Goelen & Norbert Gonzalez & Antonia Baeza Caracena, 2000. "Urban benzene and population exposure," Nature, Nature, vol. 404(6774), pages 141-142, March.
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