Heavy Metal Pollution Assessment in the Agricultural Soils of Bonao, Dominican Republic

Alberto Then, Natividad Miledy; Delanoy, Ramón; Rodríguez Alberto, Diana; Méndez Henández, Ronaldo; Díaz Rizo, Oscar; Bello, Lizaira

doi:10.3390/su152316510

Cited by 4 publications

References 43 publications

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Geochemical baseline establishment and accumulation characteristics of soil heavy metals in Sabaochaqu watershed at the source of Yangtze River, Qinghai-Tibet Plateau

Liu,

Gong,

Tan

et al. 2024

Sci Rep

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The establishment of soil geochemical baseline and heavy metal pollution assessment in the Qinghai-Tibet Plateau is of great significance for guiding environmental management in the high-cold and high-altitude regions. A total of 126 topsoil samples (0–20 cm) were collected and the contents of Cu, Pb, Zn, Ni, Cr, Cd, As and Hg were determined in the Sabaochaqu basin of the Tuotuo River, the source of the Yangtze River, in the Tibetan Plateau. The baseline values of 8 heavy metals were determined by mathematical statistics, iterative 2times standard deviation method, cumulative frequency and reference element standardization, and the soil heavy metal pollution in the study area was assessed by enrichment factor method and pollution index method. The results showed that the average contents of As, Cd, Cr, Cu, Hg, Ni, Pb and Zn were 31.84, 0.29, 66.07, 17.35, 0.021, 27.86, 49.35 and 88.56 mg/kg, respectively. Baseline values were 22.24, 0.217, 64.16, 15.69, 0.0191, 26.46, 34.91, and 68.62 mg/kg, respectively. There is a great difference between the baseline value of soil heavy metals in study area and the Xizang soil background value, especially the baseline value of Cd was 2.68 times of its background value. The results of the pollution evaluation based on the baseline values showed that the 8 heavy metals were slightly enriched, and the overall pollution status was light pollution, and measures should be taken to control and manage them. The research results can provide a reference value for the evaluation of soil heavy metal pollution in the source region of the Yangtze River, and also provide a theoretical basis for the construction of soil heavy metal baseline values in similar high-cold and high-altitude regions.

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Geochemical baseline establishment and accumulation characteristics of soil heavy metals in Sabaochaqu watershed at the source of Yangtze River, Qinghai-Tibet Plateau

Liu,

Gong,

Tan

et al. 2024

Sci Rep

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Characteristics and Risk Assessment of Soil Available Heavy Metal Pollution in Guangzhou Based on Multi Method Fusion

Zou,

Chen,

Zhang

et al. 2024

Preprint

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Assessment of the effective state concentrations of Zn, Pb, Cu, Ni, Cr, Cd, and As in 210 soil samples across the Guangzhou region in South China. The study also explores the pollution status, potential risks, and identifies the main hazard factors associated with these elements. The analysis of effective concentrations indicates average values of 13.66 mg/kg for Pb, 3.64 mg/kg for Ni, 17.92 mg/kg for Cu, 1.74 mg/kg for Cr, 51.77 mg/kg for Zn, 0.22 mg/kg for Cd, and 0.38 mg/kg for As. Notably, all heavy metals exhibited considerable variability. The single pollution index method and Nemerow index method both suggest that, with the exception of Cd, all heavy metals exhibit relatively low levels of contamination, indicating a slight overall pollution in the studied samples. The potential ecological risk index identifies Cd as the primary ecological risk factor among the available heavy metals in the soil of Guangzhou. The analysis using the potential health risk model suggests that the available forms of each heavy metal do not pose substantial health risks to both children and adults. The principal non-carcinogenic factors identified are Cu and Pb, whereas Cd and Cr emerge as the primary carcinogenic factors. The collaborative risk assessment analysis revealed that 79% of the samples in Guangzhou exhibited low potential risks, 20% showed potential risks, and only one sample indicated serious risks.

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Assessment of Soil Heavy Metal Pollution and the Ecological Risk in an Agricultural Area from Sánchez Ramírez Province, Dominican Republic

Alberto Then,

Delanoy,

Nuñez-Ramos

et al. 2024

Land

Self Cite

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Heavy metal pollution in agricultural soils is one of the main problems in agricultural production worldwide, which threatens human health and the environment. To evaluate the pollution levels of heavy metals and the ecological risks in an agricultural area from Sánchez Ramírez Province, Dominican Republic, the concentration levels of heavy metals (Fe, Mn, Cr, Ni, Cu, Zn, Pb, and As) were measured using energy-dispersive X-ray fluorescence spectroscopy (EDXRF). Several pollution indices, including the geo-accumulation index (Igeo), enrichment factor (EF), and single pollution index (PI), were used to investigate the pollution status. The spatial distribution of different heavy metals in the studied soils was also determined. The mean concentrations of Fe, Mn, Cr, Ni, Cu, Zn, Pb, and As were 73735, 1616, 426; 34; 20; 200; 43; and 5 mg kg−1, respectively. These results indicated that the mean concentration of Cr, Cu, Zn, and Pb exceeded FAO-recommended levels for healthy agricultural soils. However, the potential ecological risks assessment indicated a low-risk status. The results obtained could help improve soil–rice–environment management practices and prevent heavy metal pollution in this type of production system, protecting the health of the local population and the environment.

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Heavy Metal Pollution Assessment in the Agricultural Soils of Bonao, Dominican Republic

Cited by 4 publications

References 43 publications

Geochemical baseline establishment and accumulation characteristics of soil heavy metals in Sabaochaqu watershed at the source of Yangtze River, Qinghai-Tibet Plateau

Geochemical baseline establishment and accumulation characteristics of soil heavy metals in Sabaochaqu watershed at the source of Yangtze River, Qinghai-Tibet Plateau

Characteristics and Risk Assessment of Soil Available Heavy Metal Pollution in Guangzhou Based on Multi Method Fusion

Assessment of Soil Heavy Metal Pollution and the Ecological Risk in an Agricultural Area from Sánchez Ramírez Province, Dominican Republic

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