Table 3 Comparison of PTMs concentrations in road dust reported in recent literature nearby countries.
Study area | PTMs concentration in road dust (mgkg−1) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
As | Cd | Co | Cr | Cu | Hg | Mo | Ni | Pb | Sb | Zn | |
Present studya | 11.1 | 2.40 | 9.19 | 100 | 44.1 | 21.5 | 686 | 21.3 | 61.1 | 3.99 | 117 |
Sharjah, UAEb | 0.97 | 1.25 | - | 460 | 150 | - | - | 856 | 68.3 | - | 392 |
Datong, Chinac | 12.3 | 0.47 | 11.8 | 109 | 32.1 | 0.09 | - | 30.3 | 31.6 | - | 172 |
Zunyi, Chinad | - | - | 16.2 | 127 | 134 | - | - | 43.2 | 86.8 | - | 507 |
Islamabad, Pakistane | - | 5.0 | - | - | 52 | - | - | 23 | 104 | - | 116 |
Lahore, Pakistanf | - | 1.4 | - | - | 23.9 | - | - | 13.9 | 44.3 | - | 67.9 |
Faisalabad, Pakistanf | - | 1.3 | - | - | 25.7 | - | - | 11.4 | 38 | - | 64.1 |
Charsadda, Pakistang | - | 5.89 | 44.8 | 16.2 | 119 | - | - | 52 | 338 | - | 908 |
Jharkhand, Indiah | 70.2 | 1.2 | 21 | 167 | 1146 | - | - | 87.3 | 112 | - | 947 |
Busan, South Koreai | 13.3 | 1.1 | 8.7 | 92.2 | 80.7 | 0.01 | - | 15.6 | 85.3 | 5.4 | 430 |
Huainan, Chinaj | 12 | 0.64 | 2.94 | 83 | 57 | 0.26 | - | 23 | 71 | - | 828 |
Dhaka, Bangladeshk | 8.09 | 11.6 | - | 144 | 49.7 | - | - | 37.1 | 18.9 | - | 239 |
Jeddah, Saudi Arabial | 21.6 | 7.46 | 11.7 | 65.4 | 139 | - | - | 11.7 | 141 | - | 488 |