| Abstract: | In Turin since 1973, a pollution control network (subsequently enlarged), to monitor sulphur dioxide, carbon monoxide, nitrogen oxides, nitrogen dioxide, ozone, particulate matter, together with major meteorological parameters has existed. Pollution measurements carried out so far show changes through the years. Comparison of data between different monitoring stations, related also to different periods of the year, permits the calculation of the contribution of the different sources with respect to each pollutant. Although improvements have been achieved, values for carbon monoxide and particulate matter exceeding the Italian national air quality standards are frequent near streets with a high volume of traffic streets. The problem of high concentrations of sulphur dioxide seems to have been solved. |
