Time variation in transfer amounts of mercury by a river system near an artisanal and small-scale gold mining area in West Java, Indonesia

2019 ◽  
Vol 78 (24) ◽  
Author(s):  
Takashi Tomiyasu ◽  
Yuriko Kono Hamada ◽  
Christine Baransano ◽  
Nuril Hidayati ◽  
Joeni Setijo Rahajoe
Keyword(s):  
Time Variation ◽  
Gold Mining ◽  
River System ◽  
Mining Area ◽  
Small Scale ◽  
West Java

Mercury concentrations in paddy field soil and freshwater snails around a small-scale gold mining area, West Java, Indonesia

2020 ◽  
Vol 12 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Takashi Tomiyasu ◽  
Yuriko Kono Hamada ◽  
Christine Baransano ◽  
Hitoshi Kodamatani ◽  
Akito Matsuyama ◽  
...  
Keyword(s):  
Paddy Field ◽  
Gold Mining ◽  
Mining Area ◽  
Small Scale ◽  
Freshwater Snails ◽  
Field Soil ◽  
West Java ◽  
Paddy Field Soil

scholarly journals Distribution of total and organic mercury in soils around an artisanal and small-scale gold mining area in West Java, Indonesia

2020 ◽  
Vol 2 (7) ◽  
Author(s):  
Takashi Tomiyasu ◽  
Christine Baransano ◽  
Yuriko Kono Hamada ◽  
Hitoshi Kodamatani ◽  
Ryo Kanzaki ◽  
...  
Keyword(s):  
Gold Mining ◽  
Mining Area ◽  
Small Scale ◽  
Organic Mercury ◽  
West Java

Using native epiphytic ferns to estimate the atmospheric mercury levels in a small-scale gold mining area of West Java, Indonesia

Chemosphere ◽  
2012 ◽  
Vol 89 (3) ◽  
pp. 241-248 ◽  
Author(s):  
Yuriko Kono ◽  
Joeni S. Rahajoe ◽  
Nuril Hidayati ◽  
Hitoshi Kodamatani ◽  
Takashi Tomiyasu
Keyword(s):  
Gold Mining ◽  
Mining Area ◽  
Atmospheric Mercury ◽  
Small Scale ◽  
West Java

Distribution of total mercury and methylmercury around the small-scale gold mining area along the Cikaniki River, Bogor, Indonesia

2016 ◽  
Vol 24 (3) ◽  
pp. 2643-2652 ◽  
Author(s):  
Takashi Tomiyasu ◽  
Hitoshi Kodamatani ◽  
Yuriko Kono Hamada ◽  
Akito Matsuyama ◽  
Ryusuke Imura ◽  
...  
Keyword(s):  
Gold Mining ◽  
Total Mercury ◽  
Mining Area ◽  
Small Scale

Human health risk assessment of mercury vapor around artisanal small-scale gold mining area, Palu city, Central Sulawesi, Indonesia

2016 ◽  
Vol 124 ◽  
pp. 155-162 ◽  
Author(s):  
Koyomi Nakazawa ◽  
Osamu Nagafuchi ◽  
Tomonori Kawakami ◽  
Takanobu Inoue ◽  
Kuriko Yokota ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Gold Mining ◽  
Human Health Risk ◽  
Mercury Vapor ◽  
Mining Area ◽  
Small Scale ◽  
Central Sulawesi

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

2013 ◽  
Vol 125 ◽  
pp. 12-19 ◽  
Author(s):  
Takashi Tomiyasu ◽  
Yuriko Kono ◽  
Hitoshi Kodamatani ◽  
Nuril Hidayati ◽  
Joeni Setijo Rahajoe
Keyword(s):  
Gold Mining ◽  
Mining Area ◽  
Small Scale

scholarly journals The dietary intake of mercury from rice and human health risk in artisanal small-scale gold mining area, Indonesia

2020 ◽  
Vol 7 (5) ◽  
pp. 215-225
Author(s):  
Randy Novirsa ◽  
Quang Phan Dinh ◽  
Huiho Jeong ◽  
Sylvester Addai-Arhin ◽  
Willy Cahya Nugraha ◽  
...  
Keyword(s):  
Health Risk ◽  
Dietary Intake ◽  
Human Health ◽  
Gold Mining ◽  
Human Health Risk ◽  
Mining Area ◽  
Small Scale

scholarly journals Review Of The Small Scale Gold Mining Practices At Cineam, Tasikmalaya Regency, West Java, Indonesia

1970 ◽  
Vol 2 (1) ◽  
pp. 4-11
Author(s):  
Hutamadi Hutamadi ◽  
Bambang Nugroho Widi ◽  
Sabtanto Joko Suprapto
Keyword(s):  
Gold Deposit ◽  
Gold Mining ◽  
Mining Operation ◽  
Gold Deposits ◽  
Small Scale ◽  
Mountain Range ◽  
Gold Content ◽  
Mining Activities ◽  
West Java ◽  
Gold Miners

Gold deposit at Cineam area is an epithermal gold deposit of low sulphidation type which lies about 180 km southeast of Bandung at an elevation of 400 meter above the mean sea level. The Cineam deposit is administratively belongs to Cineam Subdistrict , Tasikmalaya Regency, West Java Province, which dominantly occurred within volcanic rocks unit of Jampang Formation. Alterations developed in this area namely propylite, argillic, sericitation, and silisification, occurred in andesitic lava, volcanic breccia, and andesitic to dacitic tuff. The thickness of gold bearing quartz veins are commonly from few cm up to > 20 cm, while for the veins of higher grade of gold content the thickness are about 5 cm or less. The average grade of gold content is around 6 - 10 gr/t Au. Although Cineam gold deposits can not be classified as a big scale deposit, itsmineral genesis has an interesting characteristic to be further studied. The Cineam area representing one of the most prospect areas of gold found in the eastern part of West Java Southern Mountain Range. As the Cineam gold deposit is proportionally suitable for a small scale gold mine, the local government had already gave a mining license to a Family Firm in the form of a Village Unit Cooperation or “KUD” such as KUD Mekarjaya which had also been updated to become a B class of Exploitation License category that permitted for the realization of metallic exploitation. This action was in line with the implementation of Autonomy Policy since the year of 2001.Although KUD Mekarjaya’s mining production is relatively so small but in fact the mining activity is still being maintained to be daily earnings for the local gold miners to rely on. Within the long run of the local gold miners activity at Cineam which has been working since 1968, this condition can give rise to many well skilled and experienced labors in seeking for gold ores, in handling small scale gold mining works, and in obtaining for the bullions. In other side, on thecontrary, there are some negative actions must be kept under control such as the disposal of the waste or tailing directly into the river and the unsafely process of heating the amalgam to obtain the bullion including other improper ways done during the handling of their mining activities. Since the whole mining operation so far generally financed by individual investors it is very likely that small scale gold mining lacks of the capital needed for the mining operation. This condition is what the KUD always facing with so that management and financial matters can be a very serious problem affecting the progress of the KUD Mekarjaya From some presentation given by the CCOP-CASM Meeting in Bandung we can compare the condition of small scale mining in Indonesia. and that from other countries which have conducted good management in mining regulation and policy in relation with licensing, mining workers, tax payment and awareness of environment live in the vicinity of mining areas On account of that event this can be expected to motivate and encourage the policy anddecision makers either locally or centrally throughout Indonesia in giving more attention related to the guidance, monitoring and inspection of the implementation of small scale mining activities which is actually growing in numbers.

scholarly journals Isolation of Mercury-Resistant Endophytic and Rhizosphere Microorganisms from Grasses in Abandoned Gold Mining Area

2021 ◽  
Vol 49 (1) ◽  
pp. 97-104
Author(s):  
Reni Ustiatik ◽  
Yulia Nuraini ◽  
Suharjono ◽  
Eko Handayanto
Keyword(s):  
Gold Mining ◽  
Cynodon Dactylon ◽  
Morphological Characteristics ◽  
Mining Area ◽  
Plate Count ◽  
Small Scale ◽  
Standard Plate Count ◽  
Rhizosphere Microorganisms ◽  
Endophytic Microorganisms ◽  
Bacteria And Fungi

There were about 900 hotspots of artisanal and small scale gold mining (ASGM) in Indonesia that recovered gold through amalgamation and cyanidation techniques. Amalgamation technique causes mercury (Hg) pollution to the soil. This study was a preliminary study that aimed to isolate Hg-resistant endophytic and rhizosphere microorganisms from pioneer grasses in the Hg-polluted soil. The most potential microorganism will be used for Hg phytoremediation in the future study. Pioneer grasses were collected from the abandoned gold mining area in Central Lombok Regency, West Nusa Tenggara. Total microorganisms were counted using Colony Forming Unit (CFU) or Standard Plate Count. The microorganism colony was characterized based on morphological characteristics. Hg-resistant endophytic and rhizosphere microorganisms were successfully isolated from pioneer grass (Cynodon dactylon and Eleusine indica) in the study site. The colonies of rhizosphere microorganisms were diverse morphologically compared to endophytic microorganisms based on the number of isolated microorganisms, 20 isolates and 17 isolates, respectively. The density of rhizosphere microorganisms was higher (96%) than endophytic microorganisms (4%). The density of rhizosphere bacteria and fungi were 47x103 and 2x103 CFU g-1, respectively. However, the density of endophytic bacteria and fungi were only 2x103 and 1x103 CFU g-1, respectively. Keywords: endophytic microorganism, Hg-resistant, microorganism density, rhizosphere microorganism

Sign in / Sign up

Export Citation Format

Share Document