In recent years, atmospheric pollution caused by air fine particulate matter (PM_2.5) happens frequently in most areas of China, which has seriously affected the human body health and industrial production and thus received extensive concern form the whole society. This paper reviews the research progress on the source and harm of air fine particulate matter pollution and control strategies. The primary particulate matter and secondary particulate matters, largely produced by human activity, are the main sources of PM_2.5. When people are constantly exposed to air polluted by PM_2.5, the human respiratory system, cardiovascular system, nervous system and immune system are jeopardized badly. In addition, PM_2.5 could cause a decline in the atmospheric visibility, which will affect the normal production and life. According to the current status of PM_2.5 pollution, comprehensive suggestions for China's PM_2.5 pollution control are put forward.

air pollution  /  fine particulate matter  /  pollution control