LOCAL COMMUNITIES’ AWARENESS AFTER GOLD MINING TERMINATION IN SIJUNJUNG REGENCY, WEST SUMATRA

Tin, Khin Nilar (2023) LOCAL COMMUNITIES’ AWARENESS AFTER GOLD MINING TERMINATION IN SIJUNJUNG REGENCY, WEST SUMATRA. Masters thesis, Andaas University.

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Abstract

The research was conducted abandoned gold mining exploration area, situated in Limo Koto Ⅶ, Sijunjung Regency. This study was commenced with the aim of investigating Hg content in water and soil after a decade of mine termination as well as the locals’ dealing with the current environmental issues in which their understanding and perception would be third objective of this research. Therefore, the data collections were starting from December 2022 (the duration was around 2 weeks). Purposive sampling for natural resources, in which soil was sampled randomly at each of the five types of land use then socio-economics data was conducted by cluster sampling method. According to the result, Hg was still contained both in water (well, pond as well as river) and soil (oil palm, paddy, citrus plantations, bush and forest) as well. Hg in soil was ranging from 0.09 ppm to 0.15 ppm which is totally acceptable compared to Indonesia’s soil quality standard, 0.5 ppm (1995). The soil pH found as acidic to highly acidic intensity, the strongest ones could be occurred in the forest where Hg and OM values hit the largest concentration in all sample sites. Alternatively, pH of water >7 was considered basic water type where Hg was between 0.041 ppm and 0.117 ppm, significantly rose not only in International but also Indonesia Standards, 0.001 ppm. The most accumulated area of Hg was in irrigated water; however, BOD and COD values were agreed with the standard guideline. The understanding on this issue, the residents could not correlate with the specific health problems and Hg. Their perceptions on nourishing agricultural products had the positive opinion but a few might be selling those items. While some respondents felt secure consuming water, the others recommended the idea of non-using the water. The locals’ perceptions were more prefer or agree with non-consumption such food sources including water. In spite of increasing Hg concentration in water, the consumption rates were outweighed the non-consumption. Owing to the limited understanding and knowledge of Hg introducing fatal diseases, residents kept utilizing Hg rich water.

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