TY - JOUR
T1 - Heavy Metals Distribution and Contamination in Groundwater of the South Eastern Coastal Area of Bangladesh
AU - Deeba, Farah
AU - Rahman, Syed Hafizur
AU - Kabir, Mohammad Zafrul
AU - Dina, Nafisa Tamannaya
AU - Das, Sudeb Chandra
AU - Sultana, Salma
AU - Ahmed, Farah Tasneem
N1 - Publisher Copyright:
© 2020. All Rights Reserved.
PY - 2021/10/10
Y1 - 2021/10/10
N2 - Groundwater provides the largest source of usable water storage in Bangladesh. Groundwater samples have been analyzed for Fe, Mn, Zn, Ni, Cr, Cu, Cd, Pb, and Co using atomic absorption spectrophotometer to evaluate the heavy metal distribution and contamination level at the southeastern coastal area of Bangladesh. Heavy metals in water samples are in the range of Fe (490–4710 µg/L), Mn (13–1970 µg/L), Zn (70–550 µg/L), Ni (42–255 µg/L), Cr (25–133 µg/L), Cu (34–95 µg/L), Cd (7–26 µg/L), Pb (0–20 µg/L), and Co (43–141 µg/L). The mean concentration of Cr, Cd, Fe, Mn, and Ni exceeded the Bangladesh standards for drinking water. Application of Pearson correlation, principal component analysis (PCA), cluster analysis (CA) and hierarchical cluster analysis (HCA) indicate that groundwater of the study area are influenced by both geogenic and anthropogenic sources of the heavy metals. Heavy metal evaluation index (HEI), degree of contamination (Cd) and heavy metal pollution index (HPI) are employed to evaluate the overall pollution level of groundwater estimating 40, 27 and 60% of samples respectively and exhibit the medium degree of pollution.
AB - Groundwater provides the largest source of usable water storage in Bangladesh. Groundwater samples have been analyzed for Fe, Mn, Zn, Ni, Cr, Cu, Cd, Pb, and Co using atomic absorption spectrophotometer to evaluate the heavy metal distribution and contamination level at the southeastern coastal area of Bangladesh. Heavy metals in water samples are in the range of Fe (490–4710 µg/L), Mn (13–1970 µg/L), Zn (70–550 µg/L), Ni (42–255 µg/L), Cr (25–133 µg/L), Cu (34–95 µg/L), Cd (7–26 µg/L), Pb (0–20 µg/L), and Co (43–141 µg/L). The mean concentration of Cr, Cd, Fe, Mn, and Ni exceeded the Bangladesh standards for drinking water. Application of Pearson correlation, principal component analysis (PCA), cluster analysis (CA) and hierarchical cluster analysis (HCA) indicate that groundwater of the study area are influenced by both geogenic and anthropogenic sources of the heavy metals. Heavy metal evaluation index (HEI), degree of contamination (Cd) and heavy metal pollution index (HPI) are employed to evaluate the overall pollution level of groundwater estimating 40, 27 and 60% of samples respectively and exhibit the medium degree of pollution.
KW - Bangladesh
KW - coastal area
KW - groundwater
KW - heavy metal
KW - pollution evaluation indices
UR - http://www.scopus.com/inward/record.url?scp=85119212202&partnerID=8YFLogxK
U2 - 10.2965/jwet.20-169
DO - 10.2965/jwet.20-169
M3 - Article
SN - 1348-2165
VL - 19
SP - 267
EP - 282
JO - Journal of Water and Environment Technology
JF - Journal of Water and Environment Technology
IS - 5
ER -