Source apportionment of heavy metals in sediments of the urban rivers flowing into Haizhou Bay, Eastern China: using multivariate statistical analyses and Pb-Sr isotope fingerprints

Deng, Xiaoqian; Wu, Yuling; Liang, Ye; Mao, Longjiang; Tan, Zhihai; Feng, Wanzhu; Zhang, Yuanzhi

doi:10.1007/s11356-021-13287-w

Cited by 16 publications

(2 citation statements)

References 62 publications

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“…This pattern aligns precisely with the distribution of inlets from harbors and channels around the county seat. Research indicates that Hg, commonly found in fossil fuels, is significantly influenced by non-point source pollution [51], correlating with TN, another parameter affected by non-point source pollution. Considering the layout of surrounding industries, transportation routes, and older communities, it can be inferred that Hg and nutrients in the sediment originate from the atmospheric deposition of wastewater and traffic exhaust from the surrounding areas as they had relatively high positive loading, with no significant correlation with other elements (see PCA, Figure 7).…”

Section: Analysis Of Pollution Sourcesmentioning

confidence: 99%

Characterization and Risk Assessment of Nutrient and Heavy Metal Pollution in Surface Sediments of Representative Lakes in Yangxin County, China

Yang,

Leng,

et al. 2024

Sustainability

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Increased urbanization and industrialization globally have led to the widespread pollution of water bodies (e.g., lakes) by heavy metals (HMs) and nutrients. These pollutants accumulate in water and surface sediments, posing risks to both aquatic organisms and human health. In November 2022, surface sediment samples from three lakes—Lianhua Lake, Mati Lake, and North Lake—were collected to assess nutrient (nitrogen and phosphorous) and HM content. Total N (TN), total P (TP), and HM concentrations were analyzed. The pollution status was evaluated using comprehensive pollution index (FF) methods and the potential ecological risk index (RI) (Eri). The results were as follows: (1) Variations in nutrient and HM contents were observed among the three lakes. Lianhua Lake exhibited the highest average TN content (1600 mg/kg), while North Lake had the highest average TP content (2230 mg/kg). The average concentrations of Cd, Hg, and As in the surface sediment surpassed the soil background values of Hubei Province, reaching 1.41, 2.74, and 1.76 times the background values, respectively. Notably, Hg exceeded the standard in Lianhua Lake by 3.39 times, followed by North Lake (2.52 times) and Mati Lake (2.24 times). (2) The FF and potential Eri revealed that the average RI values for Mati Lake, North Lake, and Lianhua Lake were 106.88, 126.63, and 162.18, respectively. These indices categorized the ecological risk levels as moderate, while nutrient salts in the surface water reached a severe pollution level. (3) Correlation and PCA indicated that Cu, Pb, Cd, and Ni were linked to mineral smelting, aquaculture feed, and agricultural fertilizers. Hg and nutrient salts originated from atmospheric deposition of surrounding domestic waste water and traffic exhaust gases. Agricultural activities seemed to contribute to As concentration in the lakes, while Cr has its main origin in the weathering of the rock matrix.

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Section: Analysis Of Pollution Sourcesmentioning

confidence: 99%

Characterization and Risk Assessment of Nutrient and Heavy Metal Pollution in Surface Sediments of Representative Lakes in Yangxin County, China

Yang,

Leng,

et al. 2024

Sustainability

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“…The implementation of these activities may release HMs to the water column by intervening in the sediments, leading to higher HM concentrations in the water [45]. The distribution trend of Cu and Ni in the water was lower in the central area and higher in the surrounding area, which may be due to the existence of artificial reefs, and the fishing activities in the central part of the country are limited [43][44][45][46]. Compared with other sea areas, the content of heavy metals in the water in the study area is relatively high, and bioremediation technologies such as seaweed can be used to improve its environmental conditions in the future.…”

Section: Characteristics Of Hms In the Water And Sedimentsmentioning

confidence: 99%

Bioaccumulation of Heavy Metals in the Water, Sediment, and Organisms from The Sea Ranching Areas of Haizhou Bay in China

Gao

Liang

et al. 2023

Water

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Heavy metals (HMs) have the characteristics of high toxicity, long residual time, and difficult degradation, which pose a potential threat to aquatic ecosystems. The distribution and migration of HMs in different media can reflect their potential impact on aquatic ecosystem health. In this study, we analyzed the distribution characteristics of seven HMs (Zn, Cu, Cr, Ni, Hg, As, and Pb) in the water and sediment and five groups of organisms (fish, Crustacean, cephalopod, bivalvia, and gastropoda) in the sea ranching area of Haizhou Bay and explored the regularity of HM accumulation from water and sediments to organisms. The results showed that in the water, Zn and Hg had the smallest concentrations in the nearshore area, Cr had the lowest concentrations in the offshore area, and As, Cu, Pb, and Ni had the lowest concentrations in the central area. In the sediment, Hg had the smallest concentrations in the nearshore area and As, Pb, Cr, Cu, Ni, and Zn had the lowest concentrations in the offshore area; the average contents of seven heavy metals all meet the Class I standard of sediments in China. The concentrations of Cu and Zn in crustaceans were significantly higher than those in fishes (p < 0.05), and As showed a higher enrichment effect in cephalopods. Under the influence of feeding habits and habitat environment, the BAF value of benthic crustaceans and bivalvia accumulated HMs from sediments is high, and the BAF value of fish accumulated HMs from water and sediments is low. Overall, the concentration of HMs in water is high, and HMs in sediments are in good condition, crustaceans and bivalviaa have a strong ability to accumulate HMs from water and sediments, while fish are weak. Therefore, in order to ensure the safety of biological quality, it is necessary to focus on the discharge of heavy metal pollutants near the coast in the future.

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Isotopic Tools for Tracing Water Pollutants

Tahir,

Khan,

Hayyat

et al. 2024

Emerging Contaminants and Associated Treatment Technologies

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Source apportionment of heavy metals in sediments of the urban rivers flowing into Haizhou Bay, Eastern China: using multivariate statistical analyses and Pb-Sr isotope fingerprints

Cited by 16 publications

References 62 publications

Characterization and Risk Assessment of Nutrient and Heavy Metal Pollution in Surface Sediments of Representative Lakes in Yangxin County, China

Characterization and Risk Assessment of Nutrient and Heavy Metal Pollution in Surface Sediments of Representative Lakes in Yangxin County, China

Bioaccumulation of Heavy Metals in the Water, Sediment, and Organisms from The Sea Ranching Areas of Haizhou Bay in China

Isotopic Tools for Tracing Water Pollutants

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