Analysis of Heavy Metal Content of Mn, Cu, Fe, Zn, Pb in Agricultural Irrigation Water and Soil After Tin Mining

Abstract The content of heavy metals Mn, Cu, Fe, Zn, and Pb in agricultural irrigation water and precast tin mining soil revealed that heavy metal concentration levels had exceeded the safe limit according to health standards. The concentration of these heavy metal coils affects plant growth and the quality of agricultural products. Analysis methods used include atomic absorption spectrophotometer and flame emission spectrometry. Data collection from various literature sources that discussed the content of heavy metals in the former tin mine area. The study revealed Mn, Cu, Fe, and Zn in water and agricultural rice field soil according to the quality standard, and the Pb level in irrigated water and soil was quite high, more than 0.1 mg/L, exceeding the limit set by the quality standard. High heavy metal concentrations in post-tin mining areas can endanger human health and the environment. Comprehensive recovery efforts are needed to reduce the content of heavy metals in post-tin mining farmland so that water and soil quality can be improved.