Block traffic: here we go again

NICE TIME, WE are NOT WANTED In these weeks many Italian cities are confronted with the problem of smog, which reaches the peak in the winter season, because of transportation and heating. To make things worse, all there are also long periods of beautiful weather, where rain, snow and wind not to “clean up” the polluted air and make the smog persisted. The problem is complex and the government have studied solutions to put into practice when the air quality exceeds the levels of the guards, staring at a medium temperature for heating in buildings (domestic, public, commercial) and by setting up blocks in circulation, with the intention of stopping cars that emit higher amounts of particulate matter (PM10).

Milan (above), but even more in Rome (below), note how in the last 10 years have decreased the emissions of particulate matter due to transport, while they are increased greatly due to the heating of buildings. Click on the chart to enlarge it.

In ROME THEY STOP THE EURO 6 – Emilia-Romagna, Lombardia, Piemonte and Veneto are granted in 2017, in order to introduce the same measures for the improvement of air quality, involving structural interventions, and other emergency: in the days when the smog is at the highest levels can not move the car Euro 4 diesel. Turin goes beyond and reaches to block well as the Euro 5 diesel. A lot has been discussed also in the choice of the city of Rome, from the 14th of January is blocking in the working days even cars with the latest Euro 6 diesel and are equipped with modern systems for the abatement of smoke in the exhaust that will significantly reduce emissions of particulate matter. The block of the Euro 6 diesel in Rome is an emergency measure, but the Capital had already given a signal announcing of wanting to stop in the course of the Ecological Sundays (the 9th of January, 9 and 23 February, 29 march).

IN the VIEWFINDER THE HEATING – But what is the particulate matter PM10? PM10 is formed from particles of a size equal to or less than 10 thousandths of a millimetre, so the purpose to reach the respiratory system and cause serious health problems. They are produced mainly during the combustion of the fuel, both of the vehicles and of heating systems. But what are the sources of PM10? Ec says that he is the FOURTEENTH Report, the Quality of the urban environment, the ISPRA (higher Institute for environmental protection and research, HERE the full search), which considers the data collected in 120 Italian cities in 2015 and compares them with those of 2005. From the research, considering the data at the national level, it emerges that the amount of PM10 in the air is reduced by 19%, going from 45,000 to 36,000 tons, 58% of which is generated by heating. If, in 2005, the boilers and other heating systems produced 14,000 tonnes of PM10 in 2015, they gave out over 21,000. Transport, thanks to the progress made, have gone down from 13,000 to 7,000 tonnes. If we consider the local data, for example, the above-mentioned Milan has halved the emissions related to road traffic, past from from 945 to 487 tons / year of PM10 emitted, but has seen an increase in those due to the boilers, which increased from 693 to 882. Rome has seen a decrease of 50% of the particulates emitted by vehicles and an increase of 50% of that of the boilers, which managed to exceed the 3,000 metric tons the year.