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As the direct sensor of air quality, the public's perception of air quality is an important basis for the government to make air pollution control decisions. Taking Lanzhou residents as research objects, 521 questionnaires were sent to four urban districts to obtain relevant data on environmental perception and to study their perceptions of changes in air quality, aiming to provide decision-making for effective policy and pollution control measures. In order to achieve the purpose of improving air quality. The results show that: (1) There is a significant correlation between residents' age and air quality concern, change perception, impact perception and environmental participation. The overall perception of residents aged 36-55 is the most obvious; (2) the length of residence and air The perception of quality change is significantly correlated with the perception of impact. The longer the residence time, the more obvious the perception. (3) The degree of education of residents is significantly related to the attention of air quality, perception of change, and perception of influence. The higher the education, the more obvious the perception. (4) Residents' occupations are significantly related to air quality attention, change perception, impact perception and environmental participation. The perceptions of teachers and medical staff are most obvious. Combined with the perception survey, it proposes reasonable measures to provide reference for reducing the impact of air quality changes on residents and creating a good urban environment.

Study on Air Quality Perception of Residents in Valley Cities