Spatial distributions and risk assessment of dissolved heavy metals in Poyang Lake

Dawen, 张大文 Zhang; Li, 张利 Zhang; Junhai, 何俊海 He; Linguang, 罗林广 Luo; Yihua, 魏益华 Wei

doi:10.5846/stxb201407091404

Cited by 3 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Li et al ( 2011) found the content of elemental mercury in Chaohu Lake to be between Class III and Class IV of the surface water quality standard. Zhang et al (2015) demonstrated that the risk level of dissolved cadmium in the water of Poyang Lake was close to the recommended value of the International Commission for Radiation Protection. Jiang et al (2018) reported that the cadmium concentration in the water of Caizi Lake in Tongling, Anhui Province, was approximately six times the safety threshold speci ed by international legislation.The ecological risk caused by heavy metals cannot only be judged from the total amount of heavy metals in the environment, considering the interaction among different species, metal elements, and environmental impact factors are extremely complex, often leading to great differences in the bioavailability of heavy metals (Hu et al, 2016).…”

mentioning

confidence: 52%

mentioning

confidence: 52%

See 1 more Smart Citation

Occurrence and source analysis of heavy metals and dissolved organic matter in Nanyi Lake, Anhui Province

Jiang

et al. 2023

Environ Monit Assess

View full text Add to dashboard Cite

Nanyi Lake is a tributary in the lower reaches of the Yangtze River and the largest freshwater lake in southern Anhui. Anthropogenic activities have signi cantly affected the lake with the rapid development of the surrounding economy in recent years. This study collected a total of 39×2 water samples of surface water and overlying water, detected the heavy metal content (As, Cr, Cu, Mn, Ni, Pb, Sb, Zn, Fe, Cd), and analyzed the spectral characteristics of the dissolved organic matter (DOM). The results demonstrated that the content of heavy metals As, Cr, Cu, Ni, Pb, Zn, and Cd in the surface water and overlying water of Nanyi Lake was lower than the class III limits of the environmental quality standard for surface water (GB3838-2002). However, the heavy metals Fe, Mn, and Sb in the overlying and surface water have sites that exceed the limit of class III. The contour map of spatial distribution demonstrated different degrees of heavy metals (except Zn) enrichment near the Langchuan River in the East Lake District. Parallel factor analysis showed that the main components of DOM in Nanyi Lake were tryptophan-like, fulvic acid-like, and tyrosine-like, and the dissolved organic matter was primarily derived from autogenous endogenous sources. The principal component and correlation analysis showed that the heavy metals in Nanyi Lake were primarily derived from the production wastewater discharged by the surrounding industrial and mining enterprises through the rivers input, followed by the non-point source runoff input of the surrounding agricultural production and lake aquaculture. eventually harm human health through biological enrichment or food chain transmission (Belabed et al., 2013 ). The middle and lower reaches of the Yangtze River are the most densely distributed areas of lakes in China. With the rapid population growth, urbanization, and intensive agricultural production in the basin, a large number of heavy metals are discharged into lakes along with industrial wastewater, agricultural wastewater, and domestic sewage, thereby resulting in heavy metal enrichment in several lakes in the middle and lower reaches of the Yangtze River. Zhang et al ( 2017) reported that the heavy metal Ni in the water of Daye Lake exceeded the class III limit of the surface water quality standard. Li et al ( 2011) found the content of elemental mercury in Chaohu Lake to be between Class III and Class IV of the surface water quality standard. Zhang et al (2015) demonstrated that the risk level of dissolved cadmium in the water of Poyang Lake was close to the recommended value of the International Commission for Radiation Protection. Jiang et al (2018) reported that the cadmium concentration in the water of Caizi Lake in Tongling, Anhui Province, was approximately six times the safety threshold speci ed by international legislation.The ecological risk caused by heavy metals cannot only be judged from the total amount of heavy metals in the environment, considering the interaction among different species, metal elements, and env...

show abstract

mentioning

confidence: 52%

mentioning

confidence: 52%

Occurrence and source analysis of heavy metals and dissolved organic matter in Nanyi Lake, Anhui Province

Jiang

et al. 2023

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…A cluster analysis method was adopted in this study, and the sampling points were divided into CA1, CA2, CA3, and CA4 Groups. These groups were composed of sampling points (4,32,33,34,35); (5,6,7,8,11,16,18,24,25,27,28,31,36,37,38); (9,12,13,14,15,19,20,21,22,23,29); and (1,2,3,10,17,26,30), respectively, as detailed in Figure 3. Table 3 shows that, with the exception of the T, pH, TP, and Zn, there were significant differences in the heavy metals and nutrients among the different groups.…”

Section: Cluster and Discriminant Analysesmentioning

confidence: 99%

“…As one of the five major rivers in Jiangxi Province, the Xiujiang River provides an important guarantee for the maintenance of water resources and water ecological security of Poyang Lake Basin. However, due to the development of exploitation of mineral resources, industry and agriculture, and urban growth, water system of the Poyang Lake presents different pollution degrees [16][17][18][19]. It has been reported that the TN and TP contents in waters at the estuary of the Xiujiang River are 1.34 mg/L and 0.09 mg/L, respectively, which are only lower than the Raohe River in the five major rivers of Poyang Lake Basin [20].…”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution Characteristics and Sources of Nutrients and Heavy Metals in the Xiujiang River of Poyang Lake Basin in the Dry Season

Chu

Wang

Zheng

et al. 2021

Water

View full text Add to dashboard Cite

In December of 2019, a total of 114 river water samples were collected from 38 sampling sites in the Xiujiang River of the Poyang Lake Basin for three consecutive days. The temperature (T), pH, dissolved oxygen (DO), chemical oxygen demand (CODCr), five-day biochemical oxygen demand (BOD5), total nitrogen (TN), ammonia nitrogen (NH4+-N), total phosphorus (TP), and concentrations of heavy metals (Cr, Cu, Zn and As) of the samples were measured. The results showed that the average concentrations of heavy metals in the mainstream of the Xiujiang River were Cu > Zn > Cr > As, and those in the main tributary of Xiujiang River (named as the Liaohe tributary) were Zn > Cu > Cr > As, which met the class III of the Environmental Quality Standards for Surface Water in China. However, it was founded that TN and NH4+-N in some agricultural areas had not met the class III standard of surface water. Hierarchical clustering analysis grouped sampling sites into four clusters. Clusters 1, cluster 2, cluster 3, and cluster 4 corresponded to an urban industrial area, rural mountainous area, primitive mountainous area, and agricultural area, respectively. The majority of the sampling sites were classified as mountainous rural areas less impacted by human activities, while the Liaohe tributary were urban industrial areas impacted more by human activities. Principal component analysis and correlation analysis results showed that variation of heavy metals and nutrient elements in Xiujiang River is related to the heterogeneity of human activities, which is mainly affected by urban industrial and agricultural pollution, and natural environments of the river with different background values. The results obtained in the current study will potentially provide a scientific basis for the protection and management of freshwater resources and aquatic ecosystems in the Xiujiang River and Poyang Lake Basin.

show abstract

Occurrence and source analysis of heavy metals and dissolved organic matter in Nanyi Lake

Jiang

et al. 2022

Preprint

View full text Add to dashboard Cite

Nanyi Lake is a tributary in the lower reaches of the Yangtze River and the largest freshwater lake in southern Anhui. Anthropogenic activities have significantly affected the lake with the rapid development of the surrounding economy in recent years. This study collected a total of 39×2 water samples of surface water and overlying water, detected the heavy metal content (As, Cr, Cu, Mn, Ni, Pb, Sb, Zn, Fe, Cd), and analyzed the spectral characteristics of the dissolved organic matter (DOM). The results demonstrated that the content of heavy metals As, Cr, Cu, Ni, Pb, Zn, and Cd in the surface water and overlying water of Nanyi Lake was lower than the class III limits of the environmental quality standard for surface water (GB3838–2002). However, the heavy metals Fe, Mn, and Sb in the overlying and surface water have sites that exceed the limit of class III. The contour map of spatial distribution demonstrated different degrees of heavy metals (except Zn) enrichment near the Langchuan River in the East Lake District. Parallel factor analysis showed that the main components of DOM in Nanyi Lake were tryptophan-like, fulvic acid-like, and tyrosine-like, and the dissolved organic matter was primarily derived from autogenous endogenous sources. The principal component and correlation analysis showed that the heavy metals in Nanyi Lake were primarily derived from the production wastewater discharged by the surrounding industrial and mining enterprises through the rivers input, followed by the non-point source runoff input of the surrounding agricultural production and lake aquaculture.

show abstract

Spatial distributions and risk assessment of dissolved heavy metals in Poyang Lake

Cited by 3 publications

References 0 publications

Occurrence and source analysis of heavy metals and dissolved organic matter in Nanyi Lake, Anhui Province

Occurrence and source analysis of heavy metals and dissolved organic matter in Nanyi Lake, Anhui Province

Spatial Distribution Characteristics and Sources of Nutrients and Heavy Metals in the Xiujiang River of Poyang Lake Basin in the Dry Season

Occurrence and source analysis of heavy metals and dissolved organic matter in Nanyi Lake

Contact Info

Product

Resources

About