Environmental impact assessment of post illegal mining activities in Chini Lake with regards to natural radionuclides and heavy metals in water and sediment

2021 ◽  
Author(s):  
Eli Syafiqah Aziman ◽  
Aznan Fazli Ismail ◽  
Siti Fatimah Jubri ◽  
Muhammad Abdullah Rahmat ◽  
Wan Mohd Razi Idris
Keyword(s):  
Heavy Metals ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Natural Radionuclides ◽  
Mining Activities ◽  
Illegal Mining ◽  
Water And Sediment

scholarly journals ENVIRONMENTAL IMPACT ASSESSMENT OF ROSIA JIU OPENCAST AREA USING AN INTEGRATED SAR ANALYSIS

2016 ◽  
Vol XLI-B8 ◽  
pp. 151-155 ◽  
Author(s):  
V. D. Poenaru ◽  
I. F. Dana Negula ◽  
A. Badea ◽  
R. Cuculici
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Land Degradation ◽  
Temporal Dynamics ◽  
Radar Signal ◽  
Deformation Model ◽  
Mining Activities ◽  
Waste Dumps ◽  
Sar Data

The satellite data provide a new perspective to analyse and interpret environmental impact assessment as function of topography and vegetation. The main goal of this paper is to investigate the new Staring Spotlight TerraSAR-X mode capabilities to monitor land degradation in Rosia Jiu opencast area taking into account the mining engineering standards and specifications. The second goal is to relate mining activities with spatio-temporal dynamics of land degradation by using differential Synthetic Aperture Radar interferometry (DInSAR). The experimental analysis was carried out on data acquired in the LAN_2277 scientific proposal framework during 2014-2015 period. A set of 25 very height resolution SAR data gathered in the VV polarisation mode with a resolution of 0.45 m x 0.16m and an incidence angle of 37° have been used in this study. Preliminary results showed that altered terrain topography with steep slopes and deep pits has led to the layover of radar signal. Initially, ambiguous results have been obtained due to the highly dynamic character of subsidence induced by activities which imply mass mining methods. By increasing the SAR data number, the land degradation assessment has been improved. Most of the interferometric pairs have low coherence therefore the product coherence threshold was set to 0.3. A coherent and non-coherent analysis is performed to delineate land cover changes and complement the deformation model. Thus, the environmental impact of mining activities is better studied. Moreover, the monitoring of changes in pit depths, heights of stock-piles and waste dumps and levels of tailing dumps provide additional information about production data.

scholarly journals DECISION SUPPORT FOR ENVIRONMENTAL IMPACT ASSESSMENT FOR MALAYSIAN BAUXITE MINING INDUSTRY USING ANALYTIC NETWORK PROCESS

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Rafikul Islam ◽  
Nagendran Periaiah ◽  
Muhammad Faris Abdullah
Keyword(s):  
Decision Support ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Mining Industry ◽  
Analytic Network Process ◽  
The State ◽  
Mining Activities ◽  
Bauxite Mining ◽  
Network Process

The mining industry plays an important role in the economic development of Malaysia. However, uncontrolled mining activities have caused serious environmental impacts. Recently, bauxite mining in Kuantan, in the state of Pahang, stained fifteen kilometers of Pahang’s coastline with red arsenic particles and heavy metal pollution washed from open-pit bauxite mines into the nearby sea. This has caused potentially catastrophic damages to the ecosystem off the coast of Pahang. This triggered the Government of Malaysia to issue a temporary ban on bauxite mining while the state government engaged in expensive clean-up. Mining activities require an Environmental Impact Assessment (EIA). Environmental decisions are complex and multidisciplinary including knowledge bases which incorporate natural, physical, and social sciences, politics, and ethics. This research proposes a decision support framework that uses the Analytic Network Process (ANP) to help decision makers in EIA pertaining to the bauxite mining industry.

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