深圳市柴油车排放现状研究

通过深圳市车流量信息摄录及数据核实，获得深圳市柴油车的基本结构组成，货运车辆在柴油车中所占比例达到了81．5％，是深圳市PM与NOx污染物的主要排放源。通过使用OBS2200与ELPI进行实际道路情况下的车载测试，得到了深圳市主要类型柴油车PM的排放因子：其中轻型货车1．4691g/km、货柜车4．1756g/km、重型货车2．3818g/km、客运车辆1．6954g／km;以及NOx排放因子：轻型货车4．44581g/km、货柜车8．4848g/km、重型货车10．7517g/km、客运车辆8．5656g/km。并由此计算出PM的年排放总量为39171．20t；NOx的年排放总量为120614．01t。统计结果表明，占柴油车总数6％的国Ⅰ货柜车产生了27％的PM排放。深圳市20％的高污染柴油车的PM与NOx排放量超过所有柴油车的PM与NOx排放量的70％。

Research on Status Quo of Emissions from Diesel Vehicles in Shenzhen

Obtained the basic composition of diesel vehicles from traffic flow information and data verification in Shenzhen ,then found that freight vehicles in the proportion of diesel vehicles has reached 81.5% and form the main source of PM and NOx emissions. By using OBS2200 and ELPI to carry out on-board vehicle emission test, get the PM emission factor of main kinds of diesel vehicles in Shenzhen： light vehicles 1.469 1 g/km,container trucks,4.175 6 g/km,heavy vehicles, 2.381 8 g/km, passenger vehicles, 1.695 4 g/km ; The NO. emission factor ： light vehicles 4.445 81 g/km, container trucks,8.484 8 g/km,heavy vehicles 10.751 7 g/km,passenger vehicles 8.565 6 g/km）,and thus calculate the PM emissions in Shenzhen was 39 171 t/year; NO, emissions in Shenzhen was 120 614 t/year. Results showed that 6% of diesel vehicles had produce 27% of PM emissions., and 20% of diesel vehicles had produce 70% of PM emissions.