Apportionment of heavy metals in soil and vegetables and associated health risks assessment

Md. Saiful Islam, Md. Kawser Ahmed and Md. Habibullah-Al-Mamun

Md. SaifulIslam

Department of Soil Science, Patuakhali Science and Technology University, Dumki,

Patuakhali-8602, Bangladesh

E-mail:;

Cell phone:+88-01717372057

Md. Habibullah-Al-Mamun

Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan.

E-mail:

Md. Kawser Ahmed

Department of Oceanography

Dhaka University, Dhaka-1000, Bangladesh

E-mail:

Md. Habibullah-Al-Mamun

Department of Fisheries

Dhaka University, Dhaka-1000, Bangladesh

E-mail:

Table S1Possible sources of pollution at the study area in Bogra district urban area Bangladesh

Sampling sites / Possible pollution sources
S1 / Dumping sites for garments waste, pharmaceutical industries observed at this site
S2 / Disposal site of organic waste, construction waste dispose at this site
S3 / Dispose of some waste from the metal workshop, construction wastedisposal
S4 / Burning of house hold waste, farm waste and mixture of industrial wastedisposal
S5 / Disposal site of the market waste,waste from car repairing house, metal wastedispose to this site
S6 / Garbage dumping, pharmaceutical industries, traffic junction,burning and dumping of industrial effluents
S7 / Waste disposal site from district urban area, traffic junction found at this site
S8 / Disposal of waste from hatchery, burning some waste near the hatchery, traffic junction also found
S9 / Waste disposal site from district urban area, waste from power station
S10 / Construction waste, burning activity, human movement
S11 / Traffic junction, dispose of some waste from the metal workshop, construction waste
S12 / Urban waste dumping and burning, agriculture waste dispose at this site
S13 / Traffic junction, burning and dumping of agriculture waste also found to this site
S14 / Dispose of some waste from the train around the station, construction waste
S15 / Traffic junction, waste dispose from metal workshop
S16 / Traffic junction, waste dispose from car repeating house, burning activity, human movement also found

Table S2Measured and certified values of heavy metal concentration, as mg/kg dry weight, in standardreference material of NMIJ CRM 7303-a lake sediment and INCT-CF-3– Corn flour

Metal / NMIJ CRM 7303-a lake sediment / INCT-CF-3– Corn flour
Certified value / Measured value (n=3) / Recovery (%) / Certified value / Measured value (n=3) / Recovery (%)
Cr / 39.1±2.8 / 39.2±0.2 / 100 / 0.137 / 0.136±0.033 / 99
Ni / 21.8±2.5 / 21.6±0.4 / 99 / 0.383±0.039 / 0.38±0.051 / 99
Cu / 23.1±3.1 / 23.3±0.6 / 101 / 1.63±0.13 / 1.59±0.09 / 97
As / 8.6±1.0 / 8.5±0.1 / 99 / 0.01 / 0.0096±0.001 / 96
Cd / 0.342±0.017 / 0.341±0.010 / 100 / 0.007 / 0.0069±0.001 / 99
Pb / 31.3±1.1 / 31.7±0.3 / 101 / 0.052 / 0.051±0.003 / 98