chemical
The chemical industry plays an important role in the national economy of various countries and is a fundamental and pillar industry in many countries. The development speed and scale of the chemical industry have a direct impact on various sectors of the social economy, with the world's annual output value of chemical products exceeding 150 billion US dollars. Due to the diverse categories, complex processes, and diverse products of the chemical industry, there are many types, large quantities, and high toxicity of pollutants emitted during production. Therefore, the chemical industry is a major polluter. At the same time, chemical products may produce a large amount of toxic substances in various processes such as processing, storage, use, and waste treatment, which can affect the ecological environment and endanger human health. The sustainable development path of the chemical industry has important practical significance for human economic and social development.