On the ArcGIS platform

gridding emission inventory of vehicle exhaust in Foshan in 2013 was built using a new method of bottomup approach based on dynamic traffic flow and emission factors data. The actual road emission characteristics of temporal and spatial distribution of the pollutant emissions were also analyzed. The results showed that the emissions of CO

 NO

x

VOCs and PM were 1.29×10

5

2.19 ×10

4

3.61×10

4

1.15×10

3

t respectively. Motor vehicle emissions mainly concentrated in the center of the city and outward road network. And the pollution emission peak was corresponded to the traffic peak

namely 7:00-9:00 and 17:00-19:00. The emissions during the morning and evening peak should be concerned in central city

and primary roads were the emphases on exhaust emission control. Light passenger cars with State 0 standard and motorcycles with State 0

State Ⅰ standard should be regulate to controlled CO and VOCs emissions

while trucks with State 0

heavy passenger cars and buses with State Ⅲ were the key to reduce NO

x

and PM emissions.