Temi ambientali
Regione Emilia Romagna
Arpae Emilia-Romagna
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The Supersite project

 

The project is focused on a detailed study of some chemicals, physical and toxicological parameters and on health, epidemiological and environmental assessment by interpretative models, in the atmosphere of Emilia-Romagna (Italy). The project rises from the necessity to improve  knowledge about environmental and health aspects of fine and ultrafine particulate, in primary and secondary components, in atmosphere. The project, structured in 7 workpackages, is organized in two measures programs: the routine one that has a time resolution principally daily, the intensive one with high time resolution and an increase  of chemical speciation respect to the routine one.

The sampling sites are five: 3 in urban areas (Bologna, Parma and Rimini), 1 in rural area (San Pietro Capofiume) and 1 in remote area (Monte Cimone). Parallel to outdoor studies, a workpackage  is planned for indoor studies and its chemical composition analysis in out/indoor ratio for characterization of indoor human exposition.

 

Objectives

The project takes into account international and consolidated experiences of Augsburg (Munich, D) and Usa “Supersites”. The project main value is the close integration among environmental data and health and epidemiological information. Many epidemiological studies have already demonstrated the correlation between air particulate and higher morbidity and mortality.

Besides, European Commission, in September 2009, decided not to allow exceptions to Emilia-Romagna Region about the obligation of PM10 limit values observance in air quality. Therefore it’s necessary to improve the knowledge about atmospheric aerosol to achieve a better governance of themes related to atmospheric and health protection.

Specific objectives are:

  • Chemical mass balance estimated using a detailed fine aerosol speciation data (EC/OC, ions, metals, organic compounds)
  • Size distribution of particles with high time resolution
  • Characterization of PBL (Planet Boundary layer) and SEB (Surface Energy Balance) meteorology during crustal particles transport and ultrafine particles nucleation events
  • Evaluation of growth and formation events of inorganic and organic secondary aerosol
  • Use of high resolution meteorological modelling (COSMO) and  chemistry-transport models (Chimere) to simulate chemical species of epidemiological interest
  • Source apportionment by receptor models using chemical speciation data
  • In compliance to Directive 50/2008 with regard to organic/elemental carbon and ions in PM2.5 in different areas of the region and to D. Lgs. 183/2004 about ozone precursors in air in a rural area
  • Toxicology evaluation of health dangerous substances, elements and compounds or mixture in aerosol
  • Realization of epidemiologic assessments by means of studies of remarkable health events:
    - short term studies, by correlation among informative flows (hospital schedule, pharmaceutical database, etc..) about diseases linked to exposure of pollutants and the values of some aerosol compounds
    - long term studies, by analysis of informative sources as cancer and mortality registry and values of some aerosol chemical species
    - risk assessment by elaborations of chemical parameters and toxicological observations and by comparisons with epidemiological analysis of short and long term events
    - improvement of population exposure evaluation by indoor air quality studies about fine and ultrafine particles.