In 2017 China Kadoorie Biobank investigators and collaborators received a foundation grant to develop methods that would provide reliable estimates of the health effects associated with both household and ambient air pollution. A major part of this study is to obtain data on personal exposure to air pollution in different micro-environments. A total of 450 participants from three regions were invited to carry a personal sensor with them for 5 days each in summer and winter to measure their exposure to fine particles (PM2.5) and carbon monoxide. Additional sensors were deployed in the kitchen and living room to understand the variations of exposure in different micro-environments.
Professor Zhengming Chen, principal investigator of the project, praised the National Coordinating Centre in Beijing and local fieldwork staff for their effort in this intensive measurement campaign. He explained: “Data collected from the fieldwork will inform more reliable estimation of exposure to air pollution in China Kadoorie Biobank. The experience gained from both participants and fieldworkers will allow us to build a large-scale research programme into the hazards of air pollution in China and other Low and Middle Income Countries”.