For more information, please refer to the Shanghai AQI update explanations. The following graphics show the relative PM2.5 AQI data for Beijing stations on which the overall Beijing AQI is based.
Posted on January 11th 2013aqicn.org/faq/2013-01-11/beijing-pm25-main-aqi-update-comparative-pm25-data-for-3-measurement-stations-in-beijing/lo/
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