The research progress in analysis of concentration of particulate matter and contents of heavy metals in atmosphere at home and abroad is summarized, including the definition of particulate matter in atmosphere, its origin and composition, pathways and hazards, testing equipment and methods, technical standards and so on. The paper also compares the testing equipment and methods and the technical standards at home and abroad. It is shown that our country lags behind in these aspects. It is also pointed that instruments which can automatically and continuously do online testing should be developed at home and abroad.

air pollution  /  atmospheric particulate matter  /  heavy metal elements  /  environmental governance