Exposure factors of cadmium for residents in an abandoned metal mine area in Korea

Ahn, Seung Chul; Chang, Jun Young; Lee, Jung Sub; Yu, Hwa Yon; Jung, A-Ra; Kim, Jee Young; Choi, Jong-Woo; Hong, Young-Seoub; Yu, Seung Do; Choi, Kyounghee

doi:10.1007/s10653-016-9872-7

Cited by 21 publications

(9 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Residents Health Effect Survey was conducted in 2014 in the HEAMM area of this study; the geometric means of blood and urinary Cd in local residents were 5.33 and 5.31 µg/L, respectively, which were higher than those of this study 23 . In this survey, the geometric means of blood and urinary Cd in the residents of the HEAMM area were 1.93 µg/L and 2.46 µg/L, respectively, representing a decrease from 2014 but remaining at a high level.…”

Section: Discussioncontrasting

confidence: 58%

Association between levels of exposure to heavy metals and renal function indicators of residents in environmentally vulnerable areas

Kwon

Lee

Surenbaatar

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Abandoned metal mines and refineries are considered environmentally vulnerable areas owing to high levels of exposure to heavy metals. This study examined the association between heavy metal exposure and renal function indicators. We studied a total of 298 participants, of which 74 and 68 resided in low- and high-exposure abandoned metal mine areas, respectively, with 121 in the refinery area and 35 in the control area. Blood and urine samples were collected from the participants to analyze the levels of blood lead, cadmium, and creatinine and urinary cadmium, NAG, and β2-MG. The estimated glomerular filtration rate, which is calculated using the Chronic Kidney Disease Epidemiology Collaboration equation, was used for assessments. The study participants comprised more females than males, and their mean age was 70.3 years. The blood lead and cadmium as well as urinary cadmium levels were 2.12 μg/dL, 1.89 μg/L, and 2.11 μg/L, respectively, in the heavy metal-exposure areas, and 1.18 μg/dL, 0.89 μg/L, and 1.11 μg/L, respectively, in the control area. The odds ratio (OR) for exceeding the reference value showed that blood cadmium in the refinery area was 38 times higher than that in the control area. Urinary cadmium was seven times higher in the low-exposure abandoned metal mine area than in the control area. NAG showed a positive correlation with urinary cadmium in all areas. In the refinery area, correlations were observed between β2-MG and urinary cadmium levels and the eGFR and blood cadmium level; in the high-exposure abandoned metal mine area, correlations were observed between NAG, β2-MG, and the eGFR and blood cadmium. In this study, the association between Cd exposure and some renal function indicators was observed. This study’s findings and the obtained biological samples can serve as a basis for future molecular biological research.

show abstract

Section: Discussioncontrasting

confidence: 58%

Association between levels of exposure to heavy metals and renal function indicators of residents in environmentally vulnerable areas

Kwon

Lee

Surenbaatar

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…It can be used as a pollution source tracking method in other regions using the analysis of Pb and As concentrations, environmental behaviors and the analysis of stable Pb isotope ratio applied to this study (Choi et al 2007; Yoo et al 2014; Ahn et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Exposure assessment for the abandoned metal mine area contaminated by arsenic

Chang

Ahn

Lee

et al. 2019

Environ Geochem Health

Self Cite

View full text Add to dashboard Cite

Among the results of community health impact assessments completed in 2014, residents of the Indae abandoned metal mine area showed high average urinary concentrations of harmful arsenic (As), at 148.9 µg/L. The concentration of harmful As was derived as the sum of As(V), As(III), MMA, and DMA concentrations known to be toxic. In this area, mining hazard prevention work was not carried out and the pollution source was neglected, and the health effect of the residents due to arsenic exposure was concerned. We re-assessed As exposure levels and tried to identify exposure factors for residents of this area. Analysis of the soil, sediment, and river water to assess the association between the soil of the Indae abandoned metal mine area and the soil in residential areas confirmed a correlation between Pb and As concentrations in the soil. Since Pb and As behave similarly, the use of the stable Pb isotope ratio for assessment of the pollution source tracking was validated. In the 3-isotope plot (207/206Pb vs. 208/206Pb) of soil samples in this area, a stable Pb isotope ratio was located on the same trend line, which confirmed that the soil in the residential area was within the area of influence of the Indae abandoned metal mine. Therefore, we judged that the pollution source of As was the Indae abandoned metal mine. The results by As species were As (III) 1.45 μg/L, As (V) 0.74 μg/L, monomethylarsonic acid (MMA) 2.43 μg/L, dimethylarsinic acid (DMA) 27.63 μg/L, and arsenobetaine 88.62 μg/L. The urinary harmful As was 31.92 μg/L, much lower than the 148.9 μg/L reported in a 2014 survey, due to the implementation of a multi-regional water supply in November 2014 that restricted As exposure through drinking river water. However, concerns remain over chronic exposure to As because As in river water used for farming and in agricultural soil still exceeds environmental standards; thus, ongoing work to address hazards from former mining areas and continued environmental monitoring is necessary.

show abstract

“…In this study, although the leaching behaviors of metals in tailing sample were investigated for the remediation of heavy metal soil contamination caused by mine tailing, generally because the metal contents do not exceed 0.1% in the contaminated soils near the abandoned mines in Korea, 1,2,13) the leaching tests were performed with low pulp density. The effects of pulp density (0.25%1%) on the leaching efficiency of metals were investigated in 1 M citrate at 400 rpm and 90°C with 3 h leaching time and 1 M Fe 3+ .…”

Section: Resultsmentioning

confidence: 99%

“…There are 2089 abandoned metal mines in South Korea, and it has been reported that about 60% (1268) abandoned metal mines have caused mine hazards such as soil contamination. 1) Thus, tailings in the abandoned mines have become one representative source of soil metal contamination, and there are increasing concerns about heavy metal soil contamination in the vicinity of the abandoned mines. 2) Heavy metals should be removed from soil because they are not decomposed naturally in the soil.…”

Section: Introductionmentioning

confidence: 99%

Removal of Heavy Metals from Tailing in Citrate Solution with Ferric Chloride

et al. 2018

View full text Add to dashboard Cite

Leaching tests were performed in citrate solution with Fe 3+ to investigate the leaching behaviors of As, Zn, Pb, and Cu from tailings, which has been known as soil contaminant sources near abandoned mines. The combination of citrate and Fe 3+ was selected based on the previous study, which reported that the oxidants such as Fe 3+ was required to remove heavy metals from stable forms like sulfides because citrate could leach metals only in carbonate and oxide forms. The leaching efficiencies of heavy metals except As increased with increasing agitation speed, initial Fe 3+ concentration, temperature, but decreasing pulp density; e.g. the efficiencies of Zn, Pb, Cu were almost 100% in the 1 M citric solution with 3 M Fe 3+ at 400 rpm and 50°C with 0.25% pulp density within 3 hr, but 7.4% for As. The initial oxidation-reduction potential (vs Ag/AgCl) was reduced from 713.5 mV in FeCl 3 solution to 656.1 mV in citrate solution with FeCl 3 , which would inhibit the dissolution of As because As mineral such as arsenopyrite has high open circuit potential. These results indicate that As could be selectively left in the leach residue using citrate solution with Fe 3+ .

show abstract

Exposure factors of cadmium for residents in an abandoned metal mine area in Korea

Cited by 21 publications

References 11 publications

Association between levels of exposure to heavy metals and renal function indicators of residents in environmentally vulnerable areas

Association between levels of exposure to heavy metals and renal function indicators of residents in environmentally vulnerable areas

Exposure assessment for the abandoned metal mine area contaminated by arsenic

Removal of Heavy Metals from Tailing in Citrate Solution with Ferric Chloride

Contact Info

Product

Resources

About