24-4 Air Quality by Area Type and Roadside Condition (2010)
	(microgram/cu.m.)
Area Type and Roadside	Annual average air pollutant concentrations
	Sulphur	Nitrogen	Total	Respirable
	Dioxide	Dioxide	Suspended	Suspended
			Particulates	Particulates
Urban①	13	62	71	46
New Town②	11	47	67	46
Rural③	10	13	-	41
Roadside④	10	117	102	60
Notes : ①Includes Kwai Chung, Central/Western, Sham Shui Po, Kwun Tong, Eastern and Tsuen Wan.
②Includes Tai Po, Sha Tin, Yuen Long and Tung Chung.
③Includes Tap Mun.
④Includes Causeway Bay, Central and Mong Kok.