Source-specific geochemical and health risk assessment of anthropogenically induced metals in a tropical urban waterway

被引:7
作者
Hossain, Md Kamal [1 ,2 ,4 ]
Islam, Fahima [1 ]
Das Karmaker, Kowshik [1 ]
Akhtar, Umme Sarmeen [3 ]
Parvin, Afsana [1 ]
Parvin, Afroza [1 ]
Moniruzzaman, Mohammad [1 ,2 ]
Saha, Badhan [1 ]
Suchi, Priyanka Dey [1 ]
Hossain, Md Anwar
Shaikh, Md Aftab Ali [5 ,6 ]
机构
[1] Bangladesh Council Sci & Ind Res BCSIR, BCSIR Labs Dhaka, Dhaka 1205, Bangladesh
[2] Bangladesh Council Sci & Ind Res BCSIR, Cent Analyt Res Facil CARF, Dr Qudrat E Khuda Rd, Dhaka 1205, Bangladesh
[3] Bangladesh Council Sci & Ind Res BCSIR, Inst Glass & Ceram Res & Testing IGCRT, Dhaka 1205, Bangladesh
[4] Bangladesh Council Sci & Ind Res BCSIR, Planning & Dev Div, Dhaka 1205, Bangladesh
[5] Dhaka Univ, Bangladesh Council Sci & Ind Res BCSIR, Dhaka 1000, Bangladesh
[6] Dhaka Univ, Dept Chem, Dhaka 1000, Bangladesh
关键词
Sediment; Trace metals; Geochemical indices; Chemometric analyses; Health hazards; Southern shoreline; Bangladesh; BOUND HEAVY-METALS; ECOLOGICAL RISK; SURFACE SEDIMENTS; FRESH-WATER; MULTIVARIATE-ANALYSIS; SOURCE APPORTIONMENT; RIVER ESTUARY; POLLUTION; CONTAMINATION; LAKE;
D O I
10.1016/j.marpolbul.2024.116483
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Thorough deliberation is necessary to safeguard the tropical urban streams near the shoreline from human interference, as it is becoming a notable environmental danger. Consequently, an in-depth study was carried out on a significant urban waterway located on the southern seashore of Bangladesh, which is positioned in the Bengal delta, renowned as the largest delta in the globe. The current investigation assesses the potential health hazards associated with trace metals (Hg, Cu, As, Pb, Ni, Zn, Cd, Cr, Fe, and Mn) and uses chemometric analysis to determine where they originate. Likewise geochemical methods are used to analyze the levels of trace metal enrichment and pollution in the sediments of the river. Almost all of the elements' mean concentrations were observed to be within the standard limits. The findings not only demonstrate the extent of trace metal contamination but also the health threats that it poses to the public (male, female, and children) by polluting the sediment. For all age groups of people, the hazard index was <1, suggesting there was no non-carcinogenic threat. Regardless of age and sex, exposure occurred in descending order: ingestion > dermal > inhalation. Total carcinogenic risk (TCR) values for males, females, and children were 1.45E-05, 1.56E-05, and 1.34E-04, respectively, recommending that children are at greater vulnerability than adults. The geochemical approach and chemometric analysis corroborate the human-induced impact of trace metal loading in the sediment of the waterway, which is predominantly caused by the oil industry, domestic garbage, and untreated waste discharge.
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页数:15
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