BACKGROUND: The long-term health effects of fine particulate matter (PM METHODS: We utilised data from the China Health and Retirement Longitudinal Study collected between 2011 and 2018. We obtained annual modelled data from the dataset of Tracking Air Pollution in China, including black carbon (BC), sulphate (SO RESULTS: We enrolled 7,032 individuals with a mean age of 57.14 (range: 45-95) years. Over 36,997 person-years of follow-up (average time: 5.26 years), 3,119 individuals suffered from hypertension. With per interquartile range increment, the hazard ratios and 95% confidence intervals (CIs) of PM CONCLUSIONS: The positive associations of long-term exposure to PM