Distribution, water quality, and health risk assessment of trace elements in three streams during the wet season, Guiyang, Southwest China

Zhang, Jue; Wu, Qixin; Wang, Zhuhong; Gao, Shilin; Jia, Huipeng; Shen, Yan

doi:10.1525/elementa.2021.00133

Cited by 13 publications

(15 citation statements)

References 46 publications

(95 reference statements)

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“…Indeed, the erosive rainfall events change the soil environmental conditions, where transfer of trace elements between soil phases are considered as the main processes controlling their behavior in soil [2]. In line with the highest values of average Zn concentration in runoff observed in our study, it was previously observed that runoff trace element concentrations in months with less rainfall were higher than in June, July, and August of higher rainfall [55].…”

Section: Discussionsupporting

confidence: 89%

Trace Elements Loss Characteristics in Runoff Discharge from Tobacco-Growing Red Soil in Sichuan Province of China

Angelique¹,

Dan²,

Ye³

et al. 2022

JACEN

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Trace elements are found in small concentrations in soil, yet plants require them for physiological functions. The runoff process leads to soil fertility loss by shifting soil particles and elements, and deposits them to a different position. However, there is a lack of information about the amount of trace elements that flow in tobacco-growing red soil during the natural rainy seasons due to runoff. In this study, runoff discharge was collected from two different soil mulching conditions (straw and no straw) at 15˚, in Miyi county of Sichuan province, to evaluate the characteristics of trace elements in runoff discharge. The runoff discharge was filtered to separate water (runoff) from sediment. The concentrations of the elements were analyzed in samples obtained from 9 erosive rainfall events, with 3 replications for every sample. The considered trace elements were Zinc (Zn), Copper (Cu), and Molybdenum (Mo). In addition, the total amount of each element loss per unit area (total loss) was also calculated statistically. The results revealed different concentrations and total losses for the selected trace elements. The total loss in runoff ranged from 10.82 to 194.05 mg/ha, 0.62 to 18.91 mg/ha, and 0.32 to 2.37 mg/ha for Zn, Cu, and Mo, respectively.

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Section: Discussionsupporting

confidence: 89%

Trace Elements Loss Characteristics in Runoff Discharge from Tobacco-Growing Red Soil in Sichuan Province of China

Angelique¹,

Dan²,

Ye³

et al. 2022

JACEN

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“…The water quality of Nanming River directly impacts the living quality of residents, assessing the river water quality is beneficial to understanding the ecological health risks and watershed management . Alkalinity and salinity are important indexes reflecting water quality .…”

Section: Methodsmentioning

confidence: 99%

Riverine Hydrochemical Characteristics of a Typical Karst Urban Watershed: Major Ion Compositions, Sources, Assessment, and Historical Evolution

Han

2022

ACS Earth Space Chem.

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Urban watersheds suffer from great pressure concerning poor water carrying capacity in the karst area with a fragile ecology system and urbanization disturbance. The hydrochemistry of karst urban rivers plays a vital role in the maintenance of water ecology. This study determined the sources of major ions (Na + , K + , Mg 2+ , Ca 2+ , F − , Cl − , NO 3 − , SO 4 2− , and HCO 3 − ) in the Nanming urban watershed. The ion concentrations were dominated by the HCO 3 − -Ca 2+ •Mg 2+ type and complied with the compoment characteristics of major ions in karst rivers with the order of Ca 2+ (mean: 83.1 mg/L) > Mg 2+ (mean: 17.6 mg/L) > Na 2+ (mean: 15.2 mg/L) > K + (mean: 6.7 mg/ L) and HCO 3 − (mean: 252.7 mg/L) > SO 4 2− (mean: 101.5 mg/L) > Cl − (mean: 17.8 mg/L) > NO 3 − (mean: 17.7 mg/L). The chemical composition of the Nanming River was possibly affected by carbonate weathering (Ca 2+ , Mg 2+ , and HCO 3 − ) and anthropogenic inputs (SO 4 2− , NO 3 − , Cl − , Na + , and K + ) through methods of principal component analysis (PCA) and ion ratios. The irrigation water quality and health risk were evaluated by the calculation of sodium adsorption ratio (SAR), soluble sodium percentage (Na%), residual sodium carbonate (RSC), and hazard quotient (HQ) and the comparison of corresponding guidelines. The results showed that the Nanming River was marginally suitable for agricultural irrigation but dangerous for direct drinking intake, and the noncarcinogenic health risk of riverine ions should also be of concern. The control of urban wastewater discharge should be paid more attention to improve the water quality in such an urban watershed.

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“…The PC 1 presented the greatest variance (57.7%), having strong positive loadings on Cr, Ni, Zn, and V (>0.7), and moderate positive loading on Pb, Cu, and Hg (0.4–0.7). PC 1 indicated that these heavy metals that were somewhat enriched could be attributed to anthropogenic effects from human activities in the investigated area [ 69 , 72 , 73 ].…”

Section: Resultsmentioning

confidence: 99%

Source Identification and Health Risk Assessment of Heavy Metals in Soil: A Case Study of Lintancang Plain, Northeast China

Man

Li³

2022

IJERPH

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To investigate the concentration, source, and potential health risk of soil heavy metals (V, Cr, Ni, Cu, Zn, Pb, Hg), this study determined the concentration of these seven metals in 37 soil samples from Linyi City, southeast of Shandong Province, China. The mean concentrations of the investigated heavy metals followed the sequence: Cr (76.2 mg/kg) > V (70.5 mg/kg) > Zn (70.1 mg/kg) > Ni (34.0 mg/kg) > Pb (31.4 mg/kg) > Cu (23.2 mg/kg) > Hg (1.7 mg/kg). The enrichment factor (EF) and geo-accumulation index (Igeo) indicated an extreme enrichment of Hg (EF > 10, Igeo > 4) within the study area, while a slight enrichment of other metals. According to the toxic risk index (TRI), Hg accounted for the strongest soil toxicity (TRI = 8.07, 64.3%). The risk assessment with hazard index (HI) suggested that the health risks of all metals were acceptable, and the HI of adults was generally lower compared with that of the children. In addition, two principal components (PC) calculated by principal component analysis (PCA) were used to identify the sources of these heavy metals, which were 57.73% for PC 1 (Pb, Cr, Zn, Ni, Hg, Cu and V) and 21.63% for PC 2 (Hg, Cu and V), respectively. Moreover, PC 1 was mainly controlled by anthropogenic inputs, while PC 2 was contributed to by natural sources. Combined with the correlation matrix, it was concluded that there were three different sources for all seven heavy metals.

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Distribution, water quality, and health risk assessment of trace elements in three streams during the wet season, Guiyang, Southwest China

Cited by 13 publications

References 46 publications

Trace Elements Loss Characteristics in Runoff Discharge from Tobacco-Growing Red Soil in Sichuan Province of China

Trace Elements Loss Characteristics in Runoff Discharge from Tobacco-Growing Red Soil in Sichuan Province of China

Riverine Hydrochemical Characteristics of a Typical Karst Urban Watershed: Major Ion Compositions, Sources, Assessment, and Historical Evolution

Source Identification and Health Risk Assessment of Heavy Metals in Soil: A Case Study of Lintancang Plain, Northeast China

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