Biomonitoring Environmental Contamination with Metallic and Methylmercury in Amazon Gold Mining Areas, Brazil

1999 ◽  
pp. 41-54
Author(s):  
Olaf Malm ◽  
Jean R. D. Guimarães
Keyword(s):  
Environmental Contamination ◽  
Gold Mining ◽  
Mining Areas

scholarly journals The outbreak of illegal gold mining in the Brazilian Amazon boosts deforestation

2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Juliana Siqueira-Gay ◽  
Luis E. Sánchez
Keyword(s):  
Gold Mining ◽  
Brazilian Amazon ◽  
Small Scale ◽  
Political Pressure ◽  
Deforestation Rate ◽  
Mining Areas ◽  
Mineral Supply ◽  
Regional Policies ◽  
Illegal Mining ◽  
Conservation Of Biodiversity

AbstractIncreased prices and political pressure are boosting illegal gold mining in the Brazilian Amazon, threatening forests, indigenous people, and conservation of biodiversity in protected areas. The rate of illegal mining deforestation increased more than 90% from 2017 to 2020, reaching 101.7 km2 annually in 2020 compared to 52.9 km2 annually in 2017. In that period, illegal mining deforestation rate grew more than the rate of clearing within mining leases. While formal mining is required to comply with environmental regulations, most small-scale or artisanal mining and especially illegal mining areas are abandoned after reserves are exhausted, without proper rehabilitation. Deforestation due to illegal mining is likely to increase in the next years, calling for coordination between local and regional policies as well as for strengthening and expanding international mechanisms to increase traceability of mineral supply chains with certification schemes to help to curb illegal mining.

Mercury contamination in fish from gold mining areas in Indonesia and human health risk assessment

2006 ◽  
Vol 368 (1) ◽  
pp. 320-325 ◽  
Author(s):  
Zuleica C. Castilhos ◽  
Saulo Rodrigues-Filho ◽  
Ana Paula C. Rodrigues ◽  
Roberto C. Villas-Bôas ◽  
Shefa Siegel ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Gold Mining ◽  
Human Health Risk ◽  
Human Health Risk Assessment ◽  
Mercury Contamination ◽  
Mining Areas

Geochemical characterization of soil samples from gold mining areas using PIXE spectroscopy

2018 ◽  
Vol 26 (5) ◽  
pp. 4924-4937 ◽  
Author(s):  
Felix Samuel Olise ◽  
Samuel Adedigba Adeojo ◽  
Oyediran Kayode Owoade ◽  
Oyebamiji Oyedele Oketayo ◽  
Solomon Adeniyi Adekola ◽  
...  
Keyword(s):  
Gold Mining ◽  
Soil Samples ◽  
Geochemical Characterization ◽  
Mining Areas

Mercury concentrations in inland waters of gold-mining areas in Rondônia, Brazil

1989 ◽  
Vol 87-88 ◽  
pp. 233-240 ◽  
Author(s):  
Wolfgang C. Pfeiffer ◽  
Luiz Drude de Lacerda ◽  
Olaf Malm ◽  
Cristina Maria M. Souza ◽  
Ene Gloria da Silveira ◽  
...  
Keyword(s):  
Gold Mining ◽  
Inland Waters ◽  
Mining Areas

PEMBINAAN DAN PENDAMPINGAN KEPADA PENAMBANG EMAS TANPA IJIN DI DESA NOELTOKO, KEC.MIOMAFFO BARAT, KAB.TTU

2019 ◽  
Vol 3 (2) ◽  
pp. 216-222
Author(s):  
Yusuf Rumbino ◽  
Fani Serangmo ◽  
Herry Zadrak Kotta ◽  
Woro Sundari ◽  
Ika Krisnasiwi ◽  
...  
Keyword(s):  
Community Service ◽  
Gold Mining ◽  
River Flow ◽  
Public Awareness ◽  
Hazardous Materials ◽  
Environmental Damage ◽  
Mining Areas ◽  
Service Activity ◽  
The Impact ◽  
Gold Sand

Abstract   Exploitation of natural resources through unlicensed gold mining (PETI) is not in accordance with mining operational standards occurring along the Noeltoko River, West Miomaffo Subdistrict, Timor Tengah Utara Regency, East Nusa Tenggara Province resulting in damage and environmental degradation. Changes and environmental damage include the formation of dug holes around the river flow, turbidity of water, changes in river flow. Other problems that arise are conflicts between these PETI workers and with other communities. This community service activity aims to provide an understanding to the community about the importance of maintaining and caring for rivers from excavation in the river walls that can cause debris / landslides explaining the impact of the use of hazardous materials such as mercury / mercury and cyanide, socialization of regulations regarding the formation of People's Mining Areas (WPR) ), introducing "sluice box" equipment to help the process of separating gold sand from sand. This activity was supported by the UPT ESDM Atambua Branch and was followed by 40 people who used to mine on the Noeltoko river. It is expected that the guidance and assistance can raise public awareness to be able to mine but still preserve the environment   Keyword: PETI, Noeltoko, WPR, sluicebox,   Abstrak   Eksploitasi sumber daya alam melalui Penambangan Emas Tanpa Izin (PETI) tidak sesuai dengan standar operasional penambangan terjadi di sepanjang sungai Noeltoko-Kecamatan Miomaffo Barat, Kabupaten Timor Tengah Utara Propinsi Nusa Tenggara Timur yang mengakibatkan kerusakan dan penurunan kualitas lingkungan. Perubahan dan kerusakan lingkungan tersebut diantaranya terbentuk lubang-lubang galian di sekitar aliran sungai, kekeruhan air, berubahnya aliran sungai.. Permasalahan lain yang timbul adalah konflik antar pekerja PETI ini maupun dengan masyarakat lain. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memberikan pemahaman kepada masyarakat mengenai pentingnya menjaga dan merawat sungai dari penggalian di dinding sungai yang dapat mengakibatkan runtuhan/longsoran menjelaskan dampak penggunaan bahan berbahaya seperti air raksa/merkuri dan sianida, sosialisasi peraturan tentang pembentukan Wilayah Pertambangan Rakyat (WPR), mengenalkan peralatan “sluice box” untuk membantu proses pemisahan buiran emas dari pasir.Kegiatan ini didukung oleh pihak UPT ESDM Cabang Atambua dan dikuti oleh 40 orang masyarakat yang biasa menambang di sungai Noeltoko. Diharapkan dengan adanya pembinaan dan pendampingan dapat menimbulkan kesadaran masyarakat untuk dapat menambang namun tetap menjaga kelestarian lingkungan   Kata kunci: PETI, Noeltoko, WPR, sluicebox

scholarly journals Understanding environmental, health and economic activity interactions following transition of ownership in gold mining areas in Tanzania: A case of private to public

2018 ◽  
Vol 79 ◽  
pp. 650-658 ◽  
Author(s):  
Sophia Rhee ◽  
Elias Charles Nyanza ◽  
Madison Condon ◽  
Joshua Fisher ◽  
Theresia Maduka ◽  
...  
Keyword(s):  
Environmental Health ◽  
Economic Activity ◽  
Gold Mining ◽  
Mining Areas

PRELIMINARY STUDY OF RIVER WATER IN GOLD MINING AREAS OF CAMBODIA

2004 ◽  
Vol 14 (03n04) ◽  
pp. 109-114
Author(s):  
SATOSHI MURAO ◽  
FUMITAKA NISHIYAMA ◽  
SOTHAM SIENG
Keyword(s):  
Gold Mining ◽  
Mineral Resources ◽  
Computer Code ◽  
External Beam ◽  
Social Concern ◽  
Mining Site ◽  
Mining Sites ◽  
Mining Areas ◽  
Preliminary Study ◽  
The University

In Cambodia, artisanal mining has recently come to a social concern because of the possibility to cause environmental degradation and human health problems. The General Department of Mineral Resources of Cambodia is collecting environmental specimens in mining sites to watch the situation. This time, four water samples from Sampov Loon and one from Memong mining site were sent from the Department to Hiroshima University, Japan, and the samples were analyzed by means of PIXE at the University. A volume of 10 μl from each sample was separated and dropped onto 4 μm polypropylene backing foil. The measurement was carried out by using 2.5 MV single-ended Van de Graaff accelerator. A Si(Li) detector (active area, 80mm2; sensitive depth, 5mm; Be -window's thickness, 25 μm; resolution, 167 eV fwhm at 5.9 keV) was used for both of in vacuo PIXE and non-vacuum external beam PIXE measurement. A computer code PIXS was used for the quantification. The result indicates that there are at least two kinds of water in Sampov Loon and one of them possibly represents polluted condition.

Mercury pollution in two gold mining areas of the Brazilian Amazon

1997 ◽  
Vol 58 (2-3) ◽  
pp. 231-240 ◽  
Author(s):  
S. Rodrigues Filho ◽  
J.E.L. Maddock
Keyword(s):  
Gold Mining ◽  
Brazilian Amazon ◽  
Mercury Pollution ◽  
Mining Areas

Strategies for Preventing Adolescent Mercury Exposure in Brazilian Gold Mining Areas

1997 ◽  
Vol 13 (2-3) ◽  
pp. 285-297 ◽  
Author(s):  
Volney De Magalhaes Camara ◽  
Maria Izabel De F Filhote ◽  
Maria Imaculada Medina Lima ◽  
Flávio Valdozende Alheira ◽  
Márcio Santos Martins ◽  
...  
Keyword(s):  
Gold Mining ◽  
Mercury Exposure ◽  
Mining Areas
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