MBBS (Shanxi Med Univ), MSc (China CDC), PhD (UC Berkeley)
Division of Epidemiology and Biostatistics
Dr Linwei Tian is an environmental epidemiologist with a focus on air pollution and health. He has been conducting field epidemiology and laboratory work on indoor air pollution and lung cancer in Xuan Wei County, which has the highest lung cancer rates among women in China. Using spatial analysis of coal use patterns and lung cancer rates in hundreds of villages, he has raised the hypothesis that crystalline silica (quartz) in coal smoke is an important risk factor in the lung cancer epidemic in rural Xuan Wei. Currently he is working to quantify quartz and other carcinogens in coal smoke and to determine whether an exposure-response relationship can be found. Should such a linkage be found he would advocate a ban of certain types of toxic coals for residential use in China. Further, he would identify reference carcinogenic materials in coal smoke for further laboratory carcinogenesis studies.
Urbanized Hong Kong provides another unique setting to study air pollution and health. Its high density of people and vehicles, high-rise buildings, a rich resource of accessible environmental measurement and healthcare data, and various air pollution control policies offers a great opportunity for valuable environmental epidemiology. Dr Tian has completed exploratory analysis of publicly available data at the population level and has generated interesting hypotheses relating adverse health outcomes which may be impacted by the Hong Kong’s pollutants and sources. Analytical studies which include personal exposure and biomarker measurements will be conducted to further test these hypotheses, infer possible causal relationships, and to inform risk-based air quality control policies.
Dai YR, Qiu H, Sun SZ, Yang Y, Lin HL, Tian LW*. Age-dependent Effect of Ambient Ozone on Emergency Asthma Hospitalizations in Hong Kong. J. Allergy Clin. Immunol. 2018; 141:1532-1534.e5. [link]
Ali ST, Wu P, Cauchemez S, He DH, Fang VJ, Cowling BJ, Tian LW. Ambient ozone and influenza transmissibility in Hong Kong. European Respiratory Journal. 2018; 51:1800369. [link]
Sun SZ, Laden F, Hart JE, Qiu H, Wang Y, Wong CM, Lee RSY, Tian LW*. Seasonal temperature variability and emergency hospital admissions for respiratory diseases: a population-based cohort study. Thorax. 2018; 73(10):951-958. [link]
Finkelman RB, Tian LW. The Health Impacts of Coal Use in China. International Geology Review. 2018; 60:579-589. [link]
Tian LW, Qiu H, Sun S, Tsang H, Chan KP, Leung WK. Association between emergency admission for peptic ulcer bleeding and air pollution: a case-crossover analysis in Hong Kong’s elderly population. Lancet Planet Heal. 2017;1:e74-81. [link]
Qiu H, Sun SZ, Tsang H, Wong CM, Lee RSY, Schooling CM, Tian LW*. 2017. Fine Particulate Matter Exposure and Incidence of Stroke: A Cohort Study in Hong Kong. Neurology. 88(18):1709-1717. [link]
Pun VC, Tian LW*, Yu ITS, Kioumourtzoglou MA, Qiu H. Differential distributed lag patterns of source-specific particulate matter on respiratory emergency hospitalizations. Environmental Science & Technology. 2015;49:3830-3838. [link]
Qiu H, Tian LW*, Pun VC, Ho KF, Wong TW, Yu ITS. Coarse particulate matter associated with increased risk of emergency hospital admissions for pneumonia in Hong Kong. Thorax. 2014; 69(11):1027-1033. [link]
Pun VC, Yu ITS, Ho KF, Qiu H, Sun ZW, and Tian LW*. Differential Effects of Ambient Source-Specific Particulate Matter on Ischemic Heart Disease Emergency Hospitalizations. Environmental Health Perspectives. 2014;122(4):391-6. [link]
Tian LW*, Qiu H, Pun VC, Lin HL, Ge EJ, Chan JC, Louie PK, Ho KF, and Yu ITS. Ambient Carbon Monoxide Associated with Reduced Risk of Hospital Admissions for Respiratory Tract Infections. American Journal of Respiratory and Critical Care Medicine. 2013;188(10):1240-5. [link]