|SHEN Jin，JI Ping，ZHOU Yi ling，YE Si qi,CHEN Duo hong，XIE Min，WANG Yu，PAN Yue yun，XU Fan，CAI Ri dong.Discussion on the Assessment of Accuracy of Air Quality Grade Forecast in Guangdong Province[J].Environmental Monitoring and Forewarning,2017,9(3):15-18
|关键词: 广东省 空气质量 等级预报 准确性评估
|Discussion on the Assessment of Accuracy of Air Quality Grade Forecast in Guangdong Province
SHEN Jin，JI Ping，ZHOU Yiling，YE Siqi,CHEN Duohong，XIE Min，WANG Yu，PAN Yueyun，XU Fan，CAI Ridong
Guangdong Environmental Monitoring Center, State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangzhou, Guangdong 510308,China
|The accuracy assessment of air quality forecast in Guangdong province was discussed. Results showed that in case of not to distinguish the pollution levels, forecast accuracy of all cities in Guangdong Province are quite different. Forecast accuracy of Zhongshan was 92%. It was the only city whose accuracy was more than 90%. Yunfu ranked the lowest, with accuracy 53%. In case of distinguishing the pollution levels, in condition of measured air quality grade above light pollution, the accuracy was generally lower. Only the accuracy of Foshan, Dongguan and Guangzhou was more than 50%, while the accuracy of the other cities was 0. Considering the accuracy of different pollution levels, Foshan ranked first, ranking nine further than that in case of not distinguishing the pollution levels. Distinguishing pollution levels was more suitable for assessment of air quality grade forecast in Guangdong, where lighter air pollution takes place. In the case of ozone as the primary pollutant, the average forecast accuracy of Guangdong was lower than that in the case of other species as the primary pollutant.
|Key words: Guangdong Province Air quality Grade forecast Assessment of accuracy