Sunday, October 13, 2013

Environment, reduce the concentrations of 10 pm, but remains critical ... - Weather Centre Italian

Into It ‘was published on Ispra report on the quality of the urban environment and has emerged that improves the situation regarding the concentration of 10 pm, but the situation is still critical in urban areas because of traffic and domestic heating. Here we report on a part of the press release: “In spite of the data shows a situation of generalized reduction of pollutant emissions in cities, as regards concentrations in the atmosphere, especially for PM10 and nitrogen dioxide, despite a downward trend, there remain critical: in fact they continue to record exceedances of the limit values ??for these two pollutants, especially in the cities of Central and Northern, Campania and Sicily. Most widely exceeding the threshold values ??for ozone, for which there has been no downward trend in concentrations in the air. “

Into PM10” The more emissions of PM10 – a mix of particles emitted from the exhaust pipes of cars, from the chimneys of boilers and fireplaces for home heating, fireplaces industries – for 2010 relate the city of Rome, Taranto, Milan, Naples and Turin, lower in Campobasso and Aosta. As for PM10 concentrations from 2006 to 2011, on a set of 57 monitoring stations, belonging to the territory of 29 cities, there was a situation of widespread tendency to reduce concentrations, weak but significant, for example, in the city of Aosta, Bari, Bologna, Florence, Palermo, Rome, Taranto, Italy. Carbon monoxide, benzene and sulfur dioxide, as in past years, there seem to be more a problem for years do not exceed the limit values ??for concentrations in the air and with regard to air emissions, the trend is for all cities in decrease, with an average value of reduction in particular of carbon monoxide between 2000 and 2010 of 56%. “

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