Sa Liu, Ph.D., MPH, CIH

Research Interests/Training Areas

  • Exposure assessment for occupational studies
  • Exposure assessment and health evaluation for environmental studies
  • Air pollution and children’s health
  • Identification and application of biomarkers for health studies via exposomic approaches


Dr. Sa Liu is currently an Assistant Professor in the School of Health Sciences at Purdue University. From 2012-2018 she was an Assistant, then Associate, Researcher in the School of Public Health at University of California, Berkeley (UC Berkeley). Dr. Liu received her Ph.D. in Environmental Health Sciences and M.P.H. in Industrial Hygiene from UC Berkeley, a M.S. in Environmental Sciences from University of Idaho, a M.S. in Environmental Engineering from Tianjin University (China), and a B.S. in Chemistry from Nankai University (China). Dr. Liu is a certified industrial hygienist (CIH). Her research is focused on assessing chemical exposure by multiple pathways (inhalation, ingestion and dermal exposure) in both occupational and environmental settings, including the development of methodologies for assessing exposure, the implementation of these methods in epidemiologic studies and the evaluation of health effects of these exposures. Dr. Liu has recently extended her research into the emerging field of exposome, in which she takes untargeted -omic approaches to assess chemical exposure through biomarkers in human blood.

Media Mentions

Hoosier Times: Task force members work to recruit participants for plume study

Hoosier Times: A broad overview: Pike & Mulberry plume community group, Purdue researchers talk ongoing projects

Indiana Economic Digest: Purging the plume: Officials discuss potential cleanup options of Martinsville contamination

Hoosier Times: Results are in: Researcher releases outcome of study of PCE plumes

CBS4 News: Purdue researchers find trace amounts of chemicals in Martinsville air, water

Hoosier Times: Community engagement needed for plume study

Recent / Representative Publications

Yao Y, Wang D, Ma H, Li C, Chang C, Low P, Hammond SK, Turyk ME, Wang J, Liu S.* (2019). A pilot study of T-regulatory cell function in rural women exposed to polycyclic aromatic hydrocarbons (PAHs) in household air pollution in Gansu, China. Environmental Research (in press)

Luo B, Shi H, Zhang K, Wei Q, Niu J, Wang J, Hammond SK, Liu S*. (2018). Cold stress provokes lung injury in rats co-exposed to fine particulate matter and lipopolysaccharide. Ecotoxicology and Environmental Safety. 2019 168: 9–16.

Liu S*, Noth E, Eisen E, Cullen MR, Hammond SK. (2018). Respirator use and its impact on particulate matter exposure in aluminum manufacturing facilities. Scandinavian Journal of Work, Environment & Health. 44(5):547-554.

Liu, S; Grigoryan, H; Edmands, W; Dagnino, S; Sinharay, R; Cullinan, P; Collins, P; Chung, KF; Barratt, B; Kelly, F; Vineis, P; Rappaport, SM. (2018). Cys34 adductomes differ between patients with chronic lung or heart disease and healthy controls in central London Environ Sci Technol. 52(4):2307-2313. doi: 10.1021/acs.est.7b05554

Gou P, Chang X, Ye Z, Yao Y, SK Hammond, Wang J, Liu S*. (2017). A pilot study comparing T-regulatory cell function among healthy children in different areas of Gansu, China. Environ Sci Pollut Res. 24(28):22579-22586. doi: 10.1007/s11356-017-9907-3.

Shrestha D, Liu S, Hammond SK, LaValley MP, Weiner DE, Eisen EA, Applebaum KM. (2016). Risk of renal cell carcinoma following exposure to metalworking fluids among autoworkers. Occup Environ Med. 73(10): 656–662. doi:10.1136/oemed-2016-103769.

Bates MN, Reed BR, Liu S, Eisen EA, Hammond SK. (2016). Solvent exposure and cognitive function in automotive technicians. Neurotoxicology. 57:22-30. DOI:10.1016/j.neuro.2016.08.009

Beckman S, Eisen E, Bates MN., Liu S, Haegerstrom-Portnoy G, Hammond SK. (2016). Acquired Color Vision Defects and Hexane Exposure: A Study of San Francisco Bay Area Automotive Mechanics. Am J Epidemiol. 183(11):969-76. doi: 10.1093/aje/kwv328

Liu S, Hammond SK, Rojas-Cheatham A. (2013). Concentrations and potential health risks of metals in lip products. Environ Health Perspect. 121(6):705-10. doi: 10.1289/ehp.1205518 

Liu S, Hammond SK, Rappaport SM. (2011). Statistical modeling to determine sources of variability in exposures to welding Fumes. Ann Occup Hyg. 55(3):305-18. doi: 10.1093/annhyg/meq088

Liu S, Hammond SK. (2010). Mapping particulate matter at the body weld department in an automobile assembly plant. J Occup Environ Hyg. 7(10):593-604. doi: 10.1080/15459624.2010.509844.


Potential Students

Currently recruiting postdoctoral researchers and doctoral students.

Sa Liu

Assistant Professor of Environmental & Occupational Health Sciences
Phone: 765-494-1419 (Main Office)
Fax: 765-496-1377
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