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. Saiful Islam
Department of Soil Science, Patuakhali Science and Technology University, Dumki,
Patuakhali-8602, Bangladesh
E-mail:msaifulpstu@yahoo.com; islam-md.saiful-nj@ynu.jp
Cell phone:+88-01717372057
Md. Habibullah-Al-Mamun
Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan.
E-mail: habibullah-al-sj@ynu.jp
Md. Kawser Ahmed
Department of Oceanography
Dhaka University, Dhaka-1000, Bangladesh
E-mail: kawser@univdhaka.edu
Md. Habibullah-Al-Mamun
Department of Fisheries
Dhaka University, Dhaka-1000, Bangladesh
E-mail: almamunhabib@gmail.com
Table S1 Possible 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 waste disposal
S4
Burning of house hold waste, farm waste and mixture of industrial waste disposal
S5
Disposal site of the market waste, waste from car repairing house, metal waste dispose 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 S2 Measured 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)
Cr
39.1±2.8
39.2±0.2
100
0.137
0.136±0.033
Ni
21.8±2.5
21.6±0.4
99
0.383±0.039
0.38±0.051
Cu
23.1±3.1
23.3±0.6
101
1.63±0.13
1.59±0.09
As
8.6±1.0
8.5±0.1
99
0.01
0.0096±0.001
Cd
0.342±0.017
0.341±0.010
100
0.007
Pb
31.3±1.1
31.7±0.3
101
0.052
Recovery
(%)
99
99
97
96
0.0069±0.001 99
0.051±0.003
98