| City/country |
Elements |
| Cd |
Cu |
Ni |
Pb |
Zn |
| Africa |
Land /Angola |
11.5 |
41.78 |
10 |
351.3 |
316.6 |
| Asia |
Amman/Jordan |
3.1-11.2 |
66.5-350 |
43-88 |
210-1131 |
116-410 |
| Bahrain |
72 |
- |
126 |
697.2 |
151.8 |
| Europe |
Madrid/spain |
- |
188 |
44 |
1927 |
476 |
| Palermo/Italy |
1.1 |
98 |
14 |
544 |
207 |
| Paris/France |
1.7 |
1075 |
25 |
1450 |
840 |
| North America |
Hermosillo/ Mexico |
4.25 |
26.34 |
4.7 |
36.15 |
387.98 |
| Ottawa/ Canada |
0.37 |
65.84 |
15.2 |
39.05 |
12.5 |
|
