Another emission inventory is avail

Another emission inventory is available from the U.S. EPA(2008). For passenger cars, their model predicts that average exhaust emissions of both PM10 and PM2.5 are much lower than the EURO 6 limit. Cai et al. (2013) used the EPA's Motor Vehicle Emission Simulator (MOVES) to estimate the exhaust PM emissions of passenger cars by model year. They found that exhaust emissions tend to decrease with newer models. Older gasoline cars emitted slightly more than the limits set by EURO 6, whereas newer models had much lower emission factors, on average. All diesel models with DPFs emit less than the EURO 6 limits, according to the computer model.