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Ambient photochemical pollution monitoring system is equipped with core monitoring system such as online photochemical precursors and photolysis rates to achieve comprehensive monitoring of ozone pollution; combines the comprehensive data analysis platform to determine the situation in the ozone pollution control area, and analyze the source of VOCs; helps relevant departments to achieve continuous improvement of air quality by finely controlling ozone and VOCs emission monitoring.

During the formulation of photochemical pollution process, various species are generated and reformed, including ozone and other oxides (such as hydrogen peroxide, aldehydes or PAN) from primary pollutants, called precursors: nitrogen oxides (NOX), non-methane volatile organic compounds (NMVOC), carbon monoxide (CO) and methane (CH4). Some of parameters are more representative for indication of seriousness of such phenomenon, as these species will only exist during the formulation process which will not get any interference from background. FPI’s ambient photochemical pollution monitoring system construct an atmospheric photochemical pollution monitoring network to support the formation, mechanism and process analysis of photochemical pollution.

? All-round Monitoring
Covers the whole process monitoring of photochemical precursors, photolysis rate and photochemical characteristic products; can meet the demands of the cause, mechanism and process analysis of photochemical pollution for research institutions and the Environmental Protection Agency.

? Provide Highly Feasible Management and Control Solutions
Quantify local contributions to refine enterprise management and control.

? Authoritative Analysis Method
Cooperate with Peking University to draw EKMA curve based on OBM model and Racm mechanism, which can accurately locate and efficiently reduce emissions; build VOCs online source analysis system based on the PMF model to identify the contribution rate of each industry.

China National Environmental Monitoring Centre;
The Institute of Urban Environment, Chinese Academy of Sciences;
College of Environmental Sciences and Engineering (Peking University);