Silver is a hazardous heavy metal that can be found in waters due to effluents from silver crafting. This research aimed to determine the silver contents of effluents from the silver craft industry in Kotagede, Yogyakarta, and analyze the distribution of silver in the receiving bodies of water: Gajahwong and Mantras Pioro River segments. Laboratory tests were conducted to calculate the presence of silver in effluents, river water, and river sediments, and a correlation analysis was employed to investigate the spatial correlation between silver concentrations and silver craft industries. Laboratory test results found silver at <0.0024-88.48 mg/L in effluents. When disposed of into the river, the silver-containing effluents cause contamination in both river segments, as evidenced by <0.0024 mg/L of silver in the water and 2.80-4.04 mg/Kg in the sediment. The distribution pattern also suggested that the concentration of silver increases as the number of silver craft industries on each side of the two river segments increases. In conclusion, the distribution of silver craft industries influences the spread of silver content in the Gajahwong and Mantras Pioro segments.

中文翻译：

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印度尼西亚日惹 Kotagede 银器工业废水及 Gajahwong 河段和 Mantras Pioro 河段中银废物的分布

银是一种危险的重金属，由于银加工的废水而存在于水中。本研究旨在确定日惹 Kotagede 银手工业废水中的银含量，并分析银在接收水体：Gajahwong 河段和 Mantras Pioro 河段中的分布。通过实验室测试计算了废水、河水和河流沉积物中银的含量，并采用相关分析来研究银浓度与银手工业之间的空间相关性。实验室测试结果发现废水中的银含量<0.0024-88.48 mg/L。当含银废水排入河流时，会对两个河段造成污染，水中银含量低于 0.0024 毫克/升，沉积物中银含量低于 2.80-4.04 毫克/公斤。这种分布格局还表明，随着两河段两岸白银手工业数量的增加，白银的集中度也随之增加。总之，白银手工业的分布影响了 Gajahwong 和 Mantras Pioro 地区白银含量的分布。