Abstract

• In many parts of the world, tea leaves are used for the health of the human and the growth of plants. The purpose of this paper is to study the concentration of elements that will come from the physical change of tea leaves and its effect on living things. In this study, the tea leaf samples were collected from the Shan state. The content concentration value of tea leaves in three stages of physical change is measured by EDXRF spectroscopy. It can be seen that the major nutrients for humans and plants are potassium and calcium. According to the measured values and calculated results, using a 250 ml cup, humans can drink 3-5 cups of green tea or 2-3 cups of black tea. It helps to reduce type II diabetes, cancer, and heart disease, and to improve the immune system. Not that much, the plants will survive in two weeks due to the supply of waste sludge of tea leaves and will grow for four weeks.