Pollution trends and ecological risks of heavy metal(loid)s in coastal zones of Bangladesh: A chemometric review

Jannat, Jannatun Nahar; Mia, Md Yousuf; Jion, Most. Mastura Munia Farjana; Islam, Md. Saiful; Ali, Mir Mohammad; Siddique, Md. Abu Bakar; Rakib, Md. Refat Jahan; Ibrahim, Sobhy M.; Pal, Subodh Chandra; Costache, Romulus; Malafaia, Guilherme; Islam, Abu Reza Md. Towfiqul

doi:10.1016/j.marpolbul.2023.114960

Cited by 37 publications

(3 citation statements)

References 100 publications

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“…The rapid advancement of industrialization and urbanization has heightened the issue of soil heavy metal pollution worldwide. Significant levels of such pollution have been detected in various countries, including Bangladesh, Russia, Iran, and Saudi Arabia [2][3][4][5]. Given its status as the most populous developing nation, China, with its population exceeding 1.4 billion, also confronts this challenge.…”

Section: Introductionmentioning

confidence: 99%

Spatial variability and source analysis of soil heavy metals: A case study of the key planting area of special agricultural products in Cangxi County, China

Feng,

Chen,

Meng

et al. 2024

PLoS ONE

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Heavy metal pollution in farmland soil represents a considerable risk to ecosystems and human health, constituting a global concern. Focusing on a key area for the cultivation of special agricultural products in Cangxi County, we collected 228 surface soil samples. We analyzed the concentration, spatial distribution, and pollution levels of six heavy metals (Cr, Cu, Pb, Ni, Zn, and Hg) in the soil. Moreover, we investigated the sources and contribution rates of these heavy metals using Principal Component Analysis/Absolute Principal Component Scores (PCA/APCS) and Positive Matrix Factorization (PMF) models. Our findings indicate that none of the six metals exceeded the pollution thresholds for farmland soils. However, the mean concentrations of Cr and Ni surpassed the background levels of Sichuan Province. A moderate spatial correlation existed between Pb and Ni, attributable to both natural and anthropogenic factors, whereas Zn, Cu, Hg, and Cr displayed a strong spatial correlation, mainly due to natural factors. The spatial patterns of Cr, Cu, Zn, Pb, and Ni were similar, with higher concentrations in the northern and eastern regions and lower concentrations centrally. Hg’s spatial distribution differed, exhibiting a broader range of lower values. The single pollution index evaluation showed that Cr and Ni were low pollution, and the other elements were no pollution. The average value of comprehensive pollution index is 0.994, and the degree of pollution is close to light pollution. Predominantly, higher pollution levels in the northern and eastern regions, lower around reservoirs. The PCA/APCS model identified two main pollution sources: agricultural traffic mixed source (65.2%) and natural parent source (17.2%). The PMF model delineated three sources: agricultural activities (32.59%), transportation (30.64%), and natural parent sources (36.77%). Comparatively, the PMF model proved more accurate and reliable, yielding findings more aligned with the study area’s actual conditions.

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Section: Introductionmentioning

confidence: 99%

Spatial variability and source analysis of soil heavy metals: A case study of the key planting area of special agricultural products in Cangxi County, China

Feng,

Chen,

Meng

et al. 2024

PLoS ONE

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“…Heavy metals are commonly concentrated in sediments, leading to the development of various heavy metal indices to assess the risk posed to the environment by the content of heavy metals in sediments [25]. Some heavy metal indices (i.e., the Nemerow pollution index, the pollution load index, and the potential ecological risk index) have been widely used to evaluate the ecological risk of marine sediments [26,27]. However, few studies employ both heavy metal and benthic indices for a comprehensive ecological quality assessment.…”

Section: Introductionmentioning

confidence: 99%

Using the Heavy Metal and Biotic Indices to Assess Ecological Quality in the Central Area of the East Sea, South Korea

Liang,

Ma,

Son

2024

Water

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With the rapid development of the South Korean economy, human activities have extensively affected Korea’s coastal environment. A precise ecological quality assessment remains paramount despite the relatively lower impact of human activities on the East Sea compared to the West and South Seas of South Korea. Accurate ecological quality assessments can provide valuable marine environmental protection and management references. In our study, we employed seven indices based on heavy metals and macrobenthos to comprehensively assess ecological quality. Our results indicated the final ecological quality in the central East Sea of South Korea was acceptable at most stations; however, the ecological quality in winter marginally falls short compared to that in spring. The concentration of heavy metals emerges as a significant determinant of the final ecological quality, underscoring the need for subsequent studies to investigate the origins of heavy metals in the central East Sea of South Korea and the influence of anthropogenic activities on heavy metal concentrations. Furthermore, employing a single biotic index proves challenging for accurately assessing ecological quality in the East Sea of South Korea.

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“…Potentially toxic metal poisoning has received considerable attention due to its high toxicity and its harmful effects on health, genetics, nutrition, and ecosystems (Jannat et al, 2023; P. H. Lin & Li, 2021; Rajan & Nandimandalam, 2024). Heavy metals are natural constituents of the Earth's crust, however human activities drastically alter the natural biogeochemical cycles of these elements (Shari et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Paper-based device (PAD) for simultaneous determination of Hg(II) and Pb(II) in water samples from São Francisco River, Brazil

Silva,

Soares,

Júnior

et al. 2024

Preprint

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Hg(II) and Pb(II) are considered potentially toxic metals (PTMs) that can be found in several ecosystems, including water systems such as lakes, rivers and groundwaters. These species are classified as human carcinogens and non-biodegradable pollutants, leading to neurological and nutritional disorders, as well as chronic diseases. Due to its relevance, several methods have been developed to determine the concentration of these PTMs; however, they require costly reagents, laborious operation and complex equipment. Herein, we present a simple-to-use and low-cost paper-based device (PAD) for Hg(II) and Pb(II) determination in natural water samples based on the colorimetric reaction between these PMTs and the dithizone colorimetric probe. The color intensity was employed as an analytical signal, through the color channels of the RGB scale. Under optimized conditions, a linear correlation of r = 0.989 and r = 0.991 and linear range of 1–20 µg/mL and 5–30 µg/mL were obtained for Hg(II) and Pb(II), respectively. After analytical optimization, the method was employed for PMTs determination using real samples from São Francisco River, Brazil. Thus, this method proved to be appropriate for Hg(II) and Pb(II) determination in natural water samples and is a easy, low-cost and straightforward alternative for the simultaneous determination of Hg(II) and Pb(II).

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Pollution trends and ecological risks of heavy metal(loid)s in coastal zones of Bangladesh: A chemometric review

Cited by 37 publications

References 100 publications

Spatial variability and source analysis of soil heavy metals: A case study of the key planting area of special agricultural products in Cangxi County, China

Spatial variability and source analysis of soil heavy metals: A case study of the key planting area of special agricultural products in Cangxi County, China

Using the Heavy Metal and Biotic Indices to Assess Ecological Quality in the Central Area of the East Sea, South Korea

Paper-based device (PAD) for simultaneous determination of Hg(II) and Pb(II) in water samples from São Francisco River, Brazil

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