Table 2.8.

Comparison of metal components of atmospheric dust in different cities (μg/m³)

Element	Shanghai	Beijing	Tianjin	Chongqing	Lanzhou (winter)
Ni	0.0457	0.0097	0.0238	–	–
Mn	0.5614	0.1468	0.1994	0.135	0.3696
Fe	8.7309	4.3008	7.1549	3.51	7.9685
Pb	0.4772	0.2429	0.2436	0.36	0.4731
Cd	0.0159	0.0043	0.0045	–	–
Cr	0.0319	0.1524	0.0259	–	–
Cu	0.2056	0.0295	0.0895	0.075	0.1645
Zn	3.3140	0.3585	0.7098	0.36	1.0168
Na	2.7262	0.6408	0.9964	4.85	–
Al	4.4316	8.5446	–	9.6	8.6762
V	0.0188	0.0665	–	–	0.0284