Table 3. Mean concentration of heavy metals in dusts of Panzhihua and other selected cities(mg·kg-1).
| Samples | Country | City | Land use | Cd | Cr | Cu | Fe | Mn | Ni | Pb | V | Zn |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RD | China | Panzhihua (This study) | IA | 0.59 | 235.46 | 148.79 | 90737.50 | 2136.06 | 52.99 | 63.21 | 800.86 | 273.55 |
| AA | 0.68 | 513.14 | 76.52 | 113598.78 | 2326.55 | 70.51 | 65.07 | 940.78 | 387.55 | |||
| HTA | 0.87 | 232.17 | 101.06 | 101180.23 | 1854.02 | 46.53 | 111.07 | 699.98 | 345.16 | |||
| RA | 0.98 | 196.04 | 98.37 | 103505.78 | 1658.20 | 46.65 | 73.12 | 636.05 | 288.97 | |||
| Urumqi[36] | 1.97 | 186.00 | 179.00 | 289.70 | 187.00 | 227.00 | ||||||
| Australia[37] | Clearview Estate | Residential area | 0.51 | 14.80 | 131.40 | 7220.00 | 200.00 | 7.92 | 32.50 | 296.60 | ||
| Nerang | Industrial area | 0.19 | 3.96 | 65.50 | 4230.00 | 90.00 | 6.11 | 25.70 | 176.40 | |||
| Benowa | Residential and Commercial area | 0.35 | 9.37 | 98.40 | 5730.00 | 150.00 | 7.01 | 29.10 | 236.50 | |||
| Surfers Paradise | Commercial area | 0.54 | 3.16 | 70.80 | 2980.00 | 60.00 | 4.53 | 38.40 | 90.40 | |||
| Italy | Gela[38] | Peripheral area | 20.00 | 49.00 | 370.00 | 29.00 | 69.00 | 55.00 | 218.00 | |||
| Industrial area | 38.00 | 48.00 | 400.00 | 38.00 | 35.00 | 90.00 | 196.00 | |||||
| Urban area | 43.00 | 104.00 | 380.00 | 36.00 | 72.00 | 64.00 | 220.00 | |||||
| Spain | Murcia Region[6] | High density population | 1.07 | 39.30 | 134.00 | 41.70 | 117.00 | 203.00 | ||||
| Medium density population | 1.55 | 28.70 | 75.40 | 37.10 | 85.70 | 149.00 | ||||||
| Low density population | 1.28 | 23.00 | 68.70 | 38.40 | 75.30 | 105.00 | ||||||
| Natural area (no population) | 1.19 | 20.40 | 19.50 | 33.00 | 27.80 | 50.30 | ||||||
| FD | China | Panzhihua (This study) | IA | 2.35 | 283.46 | 121.89 | 95622.92 | 1555.50 | 63.33 | 313.89 | 812.47 | 682.86 |
| AA | 2.92 | 618.16 | 129.10 | 127653.15 | 1523.87 | 91.66 | 405.91 | 851.88 | 1084.97 | |||
| HTA | 2.85 | 422.81 | 187.27 | 122430.85 | 2223.34 | 76.57 | 340.85 | 1356.50 | 916.48 | |||
| RA | 2.59 | 617.65 | 142.34 | 99406.10 | 3348.67 | 61.08 | 168.87 | 1656.02 | 595.47 | |||
| Huizhou city[5] | Commercial and traffic type | 7.80 | 241.50 | 324.80 | 512.00 | 1782.40 | ||||||
| Electronic Industry area | 8.40 | 237.00 | 1313.00 | 462.00 | 1860.00 | |||||||
| Power station | 12.80 | 927.60 | 914.60 | 184.00 | 204.60 | |||||||
| Residential area | 7.40 | 215.60 | 235.20 | 460.00 | 1223.00 | |||||||
| Park | 6.20 | 202.00 | 228.80 | 434.00 | 1127.00 | |||||||
| Austria | Vienna[21] | Urban area | n.d. | 30.00 | 2136.00 | n.d. | 18.00 | 311.00 | ||||
| Suburban area | n.d. | 24.70 | 1164.00 | n.d. | 13.60 | 285.00 | ||||||
| Rural area | n.d. | 20.10 | 7.50 | n.d. | 5.80 | 203.00 |
n.d.: Not detected.