Table 1.
Recent reports on heavy metals and metalloids pollution in Bangladesh soil (mg/kg).
| City | Sampling Site | Sampling Time/Site Number | As | Pb | Cd | Cr | Reference |
|---|---|---|---|---|---|---|---|
| Dhaka (Hazaribagh) | Leather industrial area | -/4 | 1.94 ± 0.39 | 50.32 ± 4.36 | 0.45 ± 0.11 | 976 ± 153 | [27] |
| Dhaka (City area) | High traffic areas | -/20 | NA | 45.68 ± 25.5 | 0.38 ± 0.14 | 31.75 ± 17.55 | [28] |
| Dhaka (DEPZ), Dry Season | Farm land surrounding industrial area | February 2010 to April 2011/20 | 4073.1 ± 1116 | 27.6 ± 7.9 | 0.0072 ± 0.02 | 49.66 ± 34.7 | [14] |
| Dhaka (DEPZ), Wet Season | Firm land surrounding industrial area | February 2010 to April 2011/20 | 2326.2 ± 3274 | 9.61 ± 11.3 | 1.04 ± 2.03 | 34.2 ± 26.5 | [14] |
| Gazipur (City area) | High industrial and traffic areas | -/3 | NA | 27.95 | 0.41 | 29.21 | [29] |
| Bogra (City area) | Urban and industrial areas | October to November 2010/14 | NA | 9.61 ± 7.483 | 6.95 ± 0.95 | 4.05 ± 2.03 | [30] |
| Chittagong (City area) | Industrial and high traffic areas | -/21 | NA | 7.33 ± 0.40 | 2.43 ± 0.17 | NA | [31] |
| Barisal | Surrounding cement industry | -/4 | 2.13 (1.45–2.5) | 23.39 (11.6–38.52) | 0.62 (0.5–0.77) | 38.26 (22.05–55.0) | [32] |
| Barisal | Surrounding textile industry | -/4 | 1.41(1.36–1.45) | 18.48 (8.2–33.22) | 1.9 (0.9–3.2) | 132.5 (95.1–185.4) | [32] |
| Barisal | Surrounding medicine industry | -/4 | 1.67(1.05–1.77) | 11.42(10.6–12.68) | 0.78 (0.5–0.87) | 25.73 (15–30) | [32] |
| Kurigram (Chilmari) | Bank of Brahmaputra river | March 2012/15 | NA | 26.7 | 0.48 | 34.7 | [33] |
| Tangail (Tarutia) | Industrial area | March–April 2016/15 | 6.11 | 17.46 | 2.01 | 11.56 | [34] |
| Dinajpur (Barapukuria) | Mine affected paddy field soil | December 2009/10 | 22.44 | 188.61 | NA | NA | [35] |
| Dinajpur (Barapukuria) | Mine affected farmland soil | 30 | 17.55 ± 5.66 | 433 ± 95 | NA | NA | [36] |
| Pabna (Pakshi) | Commercial and residential areas | 6 | 4200 ± 16.80 | 21.29 ± 0.47 | <0.1 | 28.194 ± 0.17 | [37] |
| Standards | 0.11 | 200 | 0.48 | 11 | [38] | ||
| Standards for industrial wastes (Irrigated land) mg/L | 0.2 | 0.1 | 0.05 | 1.0 | [39] |
Notes: NA, not applied/reported; DFPZ: Dhaka Export Processing Zone. For metals and metalloids concentrations, some values were reported with standard errors, and some were reported with the concentration range in brackets.