On April 30, 2018, Zhao Ang, co-director of REEI, said in an interview with Wen Wen, a reporter from China Environment News, that "the actual air quality of subways is in contrary to what people believe, indicating the need to strengthen public awareness." The report was shared among many media outlets including the Huanqiu Network. In the interview, Zhao Ang also introduced the latest research of REEI, titled "Exposure of PM2.5 in Beijing Subways, Characteristics Survey Analysis of Commuters' Coping Behavior and Health Risk Assessment". This infographic showed in detail the questionnaire conducted by REEI on Beijing subways. To get it, please click on "Exposure of PM2.5 in Beijing Subways, Characteristics Survey Analysis of Commuters' Coping Behavior and Health Risk Assessment". 

For the full interview, click the attached link:地铁内空气比外面好，未必.pdf