GSK2838232 Studies by the five travel modes

In the area and routes in this study, traffic emission was the dominant source for BC since there were no other obvious combustion sources except several hotels and restaurants along the routes. At set times (peak (7:00–9:30 am) and off-peak (14:00–16:30 pm) hours) during weekdays, door-to-door journeys were taken along three routes, R1, R2 and R3. These routes linked residential areas and working or education areas.