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Coal pollution is certainly the most serious. But the vehicle also not be underestimated. Nanjing whether general interest limit licensing issue, the authorities also said that will not be solved by automobile exhaust pollution licensing restrictions limit line mode, but will vigorously develop public transport, to encourage more people to choose public transport travel. 2 sources whether the analysis results will be updated every year? Source Apportionment study in accordance with national requirements and management needs to do, needs to be updated every year, is to be in accordance with national deployment. Because the source analytic time-consuming, but also spent a lot are in the millions. Currently nine cities have released the source analysis result, however, the Nanjing Environmental experts said, there is no comparability between the various cities. Because of the study sample different, different monitoring sites, used in different ways, and source apportionment results are different, and this is before the 'source controversy' root causes. The latest source apportionment is likely to come around just initial results. 3 Field transported pollution how to calculate? Air is flowing, so the ambient air quality in an area not only be affected by local pollution sources are affected by external transport. Therefore, to improve ambient air quality, urban agglomeration needs regional cooperation and joint prevention and control. The contribution of local and regional transport Nanjing PM2.5, based on national technical guidelines, through simulated data model, the method used between the cities are basically the same. The precipitation process is the first winter wheat region soaker Breakfast News LONDON April 1 news: Reporters learned from the Shanghai Public Security Bureau, to ease traffic congestion, balanced and elevated ground road vehicle traffic, improve the urban expressway traffic order, according to 'People's Republic of China on Road Traffic Safety Law' relevant provisions, March 31, 2015, the Shanghai Municipal Public Security Bureau issued 'on the adjustment part of the city Viaduct (urban Expressway) traffic management notice' on the part of the city Viaduct (urban Expressway) traffic management measures to adjust . Now notice as follows: a daily 7:00 to 10:00, 16:00 to 19:00, following roads is prohibited suspended license plate minibus other provinces, not passenger minibus rental and placement of the driver driving a small passenger traffic ( Saturday and Sunday