EDXRF Detection of Trace Elements in Salt Marsh Sediment of Bangladesh and Probabilistic Ecological Risk Assessment

被引：29
|
作者：
Rakib, Refat Jahan [1 ]
Hossain, M. Belal [1 ]
Jolly, Yeasmin Nahar [2 ]
Akther, Shirin [2 ]
Islam, Saiful [3 ]
机构：
[1] Noakhali Sci & Technol Univ, Dept Fisheries & Marine Sci, Noakhali 3814, Bangladesh
[2] Atom Energy Ctr Dhaka, Dept Chem, Atmospher & Environm Chem Lab, Dhaka 1000, Bangladesh
[3] Patuakhali Sci & Technol Univ, Dept Soil Sci, Dumki, Patuakhali, Bangladesh
来源：
SOIL & SEDIMENT CONTAMINATION | 2022年 / 31卷 / 02期
关键词：
Trace elements; saltmarsh sediment; contamination; potential ecological risk; Bangladesh coast; HEAVY-METAL POLLUTION; PEARL RIVER ESTUARY; SURFACE SEDIMENTS; HEALTH-RISKS; TOXIC METALS; WATER; CONTAMINATION; BAY; ACCUMULATION; VEGETABLES;
D O I：
10.1080/15320383.2021.1923644
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The surface salt marsh sediments from marine ecosystems in the Bay of Bengal, Bangladesh was assessed for trace elements like iron (Fe), calcium (Ca), titanium (Ti), potassium (K), strontium (Sr), rubidium (Rb), zirconium (Zr), zinc (Zn), copper (Cu) and lead (Pb), their potential sources, and associated ecological risks. The range of trace elements in sediment (mg/kg) followed the decreasing order: Fe (25020-35176) > Ca (8679-16323) >Ti (2678-3340) > K (23680-16770) > Sr (138.32-209.64) > Rb (124-186.57) > Zr (96.21-161.35) > Zn (37.71-44.95) > Cu (36.51-51.66) > Pb (1.35-10.42). The concentrations of trace elements were under the average shale values of metals in sediment except for Fe, Cu and Rb, which can occasionally be associated with adverse biological effects. Contamination level and ecological risk were evaluated using contamination factor (CF), enrichment factor (EF), geo-accumulation index (I-geo), pollution load index (PLI), and potential ecological risk index (PERI). Multivariate statistical technique was used to classify the metal sources. The results showed that Fe was significantly enriched in the sediments. Ecological risk factors illustrated a pollution-free condition of the salt marsh ecosystem in Bangladesh.
引用
收藏
页码：220 / 239
页数：20
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