Particulate Matter (PM) pollution still represents a great concern for its adverse effects on human health. Among the emerging risks, the neuro-toxicity of PM-associated metals has been evidenced by the scientific lit-erature. Since PM inhalation plays an important role with respect to its toxicity, there is a recognized need for improving the studies with respect to its deposition sites. This work is focused on the assessment of PM10-associated metals in the urban environment of Turin (NW Italy), one of the most polluted European areas. Data of PM10-associated metals mass size distribution, percentage repartition associated to the respiratory appa-ratus, relative concentration peaks, together with preferential deposition sites and the daily inhaled dose have been calculated. The analyzed met-als were: As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sn, V and Zn. The data are limited, considering a precautionary approach, to the winter season, when the intensity and number of sources is greater and only in the case of stable good weather conditions, when the atmospheric removal pro-cesses have a more limited impact on the aerosol dynamics. The result show that the element concentrations in Torino atmospheric PM are simi-lar to those of other considered European towns. The measures evidence a preferential association of each metal with different areas of the respira-tory apparatus Furthermore, ordering the analyzed metals with respect to the daily inhaled dose, from higher to lower, we have: Fe, Zn, Sn, Cd, Mn, Cu, Pb, Ni, Cr, Mo, V, As and Co. Even if the risk doesn’t seem to be significant up to now (apart from Cr), the evolving knowledge on the effects of chronic sub-threshold exposure might give a different evidence in the future. PM10 size repartition measurement, together with the analy-sis of PM10-associated compounds, could well intermittently complement the routine air quality measures with the purpose of increasing the present body of knowledge with respect to PM neurotoxicity, allowing to im-prove both the existing risk assessment procedures and the public health management.

Adult chronic exposure to neurotoxic metals associated with atmospheric aerosols: A case study in the urban area of turin (NW Italy)

MAURINO, Valter;MALANDRINO, Mery
2016

Abstract

Particulate Matter (PM) pollution still represents a great concern for its adverse effects on human health. Among the emerging risks, the neuro-toxicity of PM-associated metals has been evidenced by the scientific lit-erature. Since PM inhalation plays an important role with respect to its toxicity, there is a recognized need for improving the studies with respect to its deposition sites. This work is focused on the assessment of PM10-associated metals in the urban environment of Turin (NW Italy), one of the most polluted European areas. Data of PM10-associated metals mass size distribution, percentage repartition associated to the respiratory appa-ratus, relative concentration peaks, together with preferential deposition sites and the daily inhaled dose have been calculated. The analyzed met-als were: As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sn, V and Zn. The data are limited, considering a precautionary approach, to the winter season, when the intensity and number of sources is greater and only in the case of stable good weather conditions, when the atmospheric removal pro-cesses have a more limited impact on the aerosol dynamics. The result show that the element concentrations in Torino atmospheric PM are simi-lar to those of other considered European towns. The measures evidence a preferential association of each metal with different areas of the respira-tory apparatus Furthermore, ordering the analyzed metals with respect to the daily inhaled dose, from higher to lower, we have: Fe, Zn, Sn, Cd, Mn, Cu, Pb, Ni, Cr, Mo, V, As and Co. Even if the risk doesn’t seem to be significant up to now (apart from Cr), the evolving knowledge on the effects of chronic sub-threshold exposure might give a different evidence in the future. PM10 size repartition measurement, together with the analy-sis of PM10-associated compounds, could well intermittently complement the routine air quality measures with the purpose of increasing the present body of knowledge with respect to PM neurotoxicity, allowing to im-prove both the existing risk assessment procedures and the public health management.
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https://lhscientificpublishing.com/journals/JEAM-Download.aspx
Inhalation; Metals; Neurotoxicity; PM10; Urban environment; Accounting; Strategy and Management1409 Tourism, Leisure and Hospitality Management; Management, Monitoring, Policy and Law; Ecological Modeling; Ecology; Urban Studies
Casazza, Marco; Maurino, Valter; Malandrino, Mery
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1622914
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