Analisis Keberadaan Mangan pada Air Sumur Bor Masyarakat dan Risiko Kesehatan di Desa Pantai Gemi Kecamatan Stabat Kabupaten Langkat

Abstract

Groundwater is a source of clean water and drinking water for daily life in Pantai Gemi Village. Manganese is an essential metal that is always present together with iron and is toxic and is found in groundwater. The purpose of this study was to analyze the presence of manganese in community drilled wells and the health risks in Pantai Gemi Village. This type of research is a descriptive quantitative study with a cross-sectional design and ARKL approach. This research was conducted in Pantai Gemi Village, Stabat District, Langkat Regency from March to June 2025. The population in this study was 592 people. The research sample was determined by the Slovin formula, namely 86 respondents with a purposive sampling technique. The results of the study showed that respondents were dominated by people aged 18-40 years 38 people (44,2%), female gender 75 people (87,2%), and the highest education of elementary school 34 people (39,5%). The results of the examination of water samples with a total of 9 water samples showed that the results of all samples were above the quality standard value of 0.1 mg/L. The highest concentration of manganese in tap water was 2,584 mg/L. The most common health complaint of nervous disorders experienced by the community is tremor (shaking hands) as many as 49 people (57,0%), followed by body feeling tense as many as 45 people (52,3%) and body feeling stiff as many as 44 people (51,2%). The highest average intake value is at point 3, namely Hamlet V Anugrah, at 0,10250 mg/kg/day with the highest and lowest ranges of 0,010-0,324 mg/kg/day. The maximum value is above the RfD value of 0,14 mg/kg/day. The highest average RQ value is at point 3, namely 0,38734 with the lowest and highest ranges of 0,038 and 1,225, which means that there are people in Pantai Gemi Village at risk of the effects of manganese exposure. The government needs to carry out risk management efforts for communities with RQ≥1. Thus, by carrying out risk management, it is hoped that the community can avoid future health complaints.