Coal is a major source of energy in China, with coal-fired power plants being a significant contributor. When coal is mined and burned, hazardous trace elements are released into the environment, leading to pollution and potential health risks. These elements can enter water and soil, impacting local ecosystems. The disposal of waste from coal processing must be carefully managed to prevent contamination. During combustion, trace elements can be released into the air as gases, solids, or remain in ash. This process contributes to air pollution and can lead to acid rain. Overall, coal usage results in the release of harmful trace elements into the environment, posing risks to both human health and the ecosystem.