The distribution of mercury around the small-scale gold mining area along the Cikaniki river, Bogor, Indonesia

Tomiyasu, Takashi; Kono, Yuriko; Kodamatani, Hitoshi; Hidayati, Nuril; Rahajoe, Joeni Setijo

doi:10.1016/j.envres.2013.03.015

Cited by 44 publications

(19 citation statements)

References 28 publications

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“…The process by which many developing countries use elemental Hg to extract gold is becoming one of the primary sources of Hg pollution (Tomiyasu et al 2013). In gold mining, Hg employed in its elemental form to produce Gold-Hg amalgams can escape to the atmosphere and deposited on surrounding soils and aquatic ecosystems (Rodrigues-Filho and Maddock 1997;Cesar et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Influence of mining related activities on levels of mercury in water, sediment and fish from the Ankobra and Tano River basins in South Western Ghana

Asare-Donkor

Adimado

2016

Environ Syst Res

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Background: Mercury (Hg) used in gold amalgamation is a major source of contamination in developing countries. The present study evaluates the concentrations of total mercury in water, sediment and fish from the Ankobra and Tano Rivers, which drain the major gold mining areas in Ghana. Total mercury (T-Hg) analysis was carried out using an atomic absorption spectroscopy (Perkin Elmer model 5100PC) equipped with a flow injection analysis system (FIAS, AS-90). Results:Water, sediment and fish T-Hg concentrations were 0.145-1.078 μg/L, 23.39-73.31, and 0.03-0.443 μg/g dw, respectively in Ankobra basin, while in Tano basin levels of 0.214-0.250 μg/L, 14.43-21.51, 0.068-0.413 μg/g were found for water, sediment and fish, respectively. The T-Hg concentration in water from both basins were within the World Health Organization threshold limits for drinking water except at River Asuo Kofi. Concentration of T-Hg in the sediment exceeded Environmental Protection Agency ecotoxicological threshold in some sampling stations, suggesting potential adverse ecological effects. T-Hg levels in fish from both basins were lower than the WHO value (<0.500 μg/g (wet wt). The target hazard quotient values, suggest that human should minimizing meals/week of the analyzed species to avoid deleterious effect during lifetime. Conclusions:The results suggested that mining activities significantly contribute to the considerable environmental Hg contamination in both Ankobra and Tano River basins. Therefore Hg levels should carefully monitored and controlled to reduce its inputs and mitigate potential health consequences of Hg accumulation in the environment.

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Section: Introductionmentioning

confidence: 99%

Influence of mining related activities on levels of mercury in water, sediment and fish from the Ankobra and Tano River basins in South Western Ghana

Asare-Donkor

Adimado

2016

Environ Syst Res

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“…The mercury lost to the tailings is lost in the form of flowered mercury (microspherules) and is lost due to adsorption to mineral surfaces, particularly to oxides like limonite.In additon, since 1989, ASM has emitted to the atmosphere in the Kareng Pangi region 30 tonnes of mercury where most it directly into the middle of the town of Kareng Pangi and at least 13 tonnes has been lost to tailings. Tomiyasu et al (2013) analyzed soil Total Hg (THg) at four locations around ASGM operations in West Java, Indonesia, and found average THg concentrations of 13.5, 4.29, 1.93 and 55.6 mg/kg, respectively. These levels are above the Chinese National food safety standard for Hg in agriculture soil (1.5 mg/kg).They predicted that dissolved or suspended mercury was transported to soil through irrigation channels.…”

Section: Introductionmentioning

confidence: 99%

ASGM status in West Nusa Tenggara Province, Indonesia

Krisnayanti¹

2018

J.Degrade.Min.Land Manage.

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Artisanal Small-Scale Gold Mining (ASGM) obviously contributes to serious environmental and health issue for miners, nearby populations, and larger community when the use of mercury (Hg) occurs. Mercury amalgamation is used as a gold recovery technique by 10-12 million ASGM miners around the world and a predicted around 1000 tonnes of mercury are discharged into the environment every year as a result of poor mining practices. Exposure to mercury can cause serious health effects for future generation, and miners and their families are vulnarable group to expose with mercury vapor and methyl mercury contaminated food in ASGM areas, resulting in increase of levels of mercury in human specimens. Thus, investigating the the effects of mercury on the environment and people health are urgently necessary for developing a better solution to eliminate further mercury contamination to environment in West Nusa Tenggara (WNT) Province. A field survey had been conducted for this research in two main ASGM spots in WNT Province: Sekotong-Lombok island and Taliwang-Sumbawa island. As part of the study, an initial health survey and socio-economic of workers/miners was conducted. Volunteer participants at sampling locations across Sekotong-Lombok and TaliwangSumbawa (exposed; indirect exposed; non exposed groups) answered a questionnaire, and allowed the sampling of hair for subsequent analysis. The ore, tailing, plants and soil samples were also collected for investigating Hg concentration on the substances. The results found that the impact of ASGM on increasing economic activity leading to jobs, income and opportunities for social development is positive. However, there is risk of contamination in soil and plants environment through mining activity and high Hg concentration discovered in human body in a short time of ASGM activity. The environmental sustainability of mining can be better regulated within legalised areas. Environmental monitoring will define unacceptable risk and allow for advanced implementation of remedial measures before an uncontrollable disaster occurs.

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“…Total concentration of Hg was analyzed using cold vapor atomic absorption spectroscopy (Guanghua F732‐VJ) as described by (Nowinski et al, 2013; Tomiyasu et al, 2013). The detection limit was 0.05 μg kg −1 .…”

Section: Methodsmentioning

confidence: 99%

Bacterial Bioreporter‐Based Mercury and Phenanthrene Assessment in Yangtze River Delta Soils of China

Yuan

et al. 2018

J of Env Quality

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Genetically engineered bacterial whole-cell bioreporters were deployed to investigate bioavailable mercury (b-Hg) and phenanthrene (b-PHE). Characterized by high sensitivity and specificity in aqueous solutions, the bioreporter system could detect in amended soils the concentrations of b-Hg and b-PHE in the ranges of 19.6 to 111.6 and 21.5 to 110.9 μg kg, respectively. The sensitivity of the system allowed for the combined analysis of b-Hg and b-PHE from real environmental samples. Therefore, soil samples from three large refinery facilities were tested, and the results from the instrumental analysis strongly correlated with the ones obtained with the bioreporter method. Large-scale and fast screening of soil contamination across the Yangtze River Delta in Eastern China was conducted. More than 36% of the samples contained b-Hg, whereas the fractions of b-PHE were below the detection limit for all the samples. These results indicated a higher toxicity and more hazardous condition for Hg contamination than for PHE. Population densities and airborne 10-μm particulate matter (PM10) concentrations were used as parameters for comparison with the spatial distribution of the b-Hg and b-PHE fractions. The results revealed that the bioreporters could offer a rapid and cost-efficient method to test soil samples from contaminated areas and provide a screening tool for environmental risk assessment.

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The distribution of mercury around the small-scale gold mining area along the Cikaniki river, Bogor, Indonesia

Cited by 44 publications

References 28 publications

Influence of mining related activities on levels of mercury in water, sediment and fish from the Ankobra and Tano River basins in South Western Ghana

Influence of mining related activities on levels of mercury in water, sediment and fish from the Ankobra and Tano River basins in South Western Ghana

ASGM status in West Nusa Tenggara Province, Indonesia

Bacterial Bioreporter‐Based Mercury and Phenanthrene Assessment in Yangtze River Delta Soils of China

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