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Professor Li-Hao Young

Name Li-Hao Young Li-Hao Young
Title Professor / Department Chair
Affiliation
  • Department of Occupational Safety and Health, College of Public Health, China Medical University
  • Address: No.100, Sec. 1, Jing-Mao Road, Taichung City, Taiwan 40604
  • Tel: (+886-4) 22967979 ext. 6219
  • E-mail： lhy@mail.cmu.edu.tw
Resume Degree
  • Ph.D., Industrial Hygiene, Dept. of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA, 2006
  • M.S., Environmental Health, Graduate Institute of Environmental Health, National Taiwan University, Taipei, Taiwan, 1998
  • B.S., Public Health, Dept. of Public Health, China Medical College, Taichung, Taiwan, 1996
Professional experience
  1. 2022/8-present, Professor, Dept. of Occupational Safety and Health, China Medical University, Taichung, Taiwan
  2. 2013/8-2022/7, Associate Professor, Dept. of Occupational Safety and Health, China Medical University, Taichung, Taiwan
  3. 2009/7-8, Visiting Scholar, Dept of Chemistry, Kent State University, Kent, OH, USA
  4. 2007-2013, Assistant Professor, Dept. of Occupational Safety and Health, China Medical University, Taichung, Taiwan
  5. 2006/2-11, Postdoctoral Fellow, Dept of Chemistry, Kent State University, Kent, OH, USA
  6. 2001-2005, Graduate Research Student Assistant, Dept of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
  7. 2000-2001, Research Associate, Graduate Institute of Environmental Health, National Taiwan University, Taipei, Taiwan
Fields of Specialty
  • Environmental health
  • Industrial hygiene
  • Exposure assessment
  • Air quality
  • Air pollution control
Research Areas
  • New particle formation (nucleation) mechanisms
  • Aerosol sampling and characterization
  • Diesel engine exhaust
  • Workplace dust
  • Atmospheric processes and aerosol dynamics
  • Receptor modeling
  • Health effects of ambient aerosols
Selected Publication
  1. Wang, C.-Y, Young, L.-H., Chen, B.-T., Hwang, B.-F., Jung, Chau-Ren*. Development of daily 1 km resolution estimation models for outdoor BTEX using random forest with land-use data and meteorological variables. Journal of Hazardous Materials. 2025, 489:1-10.
  2. Ho, M.-S., Lin, M.-Y.*, Wu, C.-D.*, Wang, J.-D., Young, L.-H., Hsu, H.-T., Hwang, B.-F., and Tsai, P.-J.* . An Integrated Approach for Conducting long-term PM2.5 Exposure and Health Impact Assessments for Residents of a City-scale. Aerosol and Air Quality Research. 2024, 24(3):1-15.
  3. Chang, T.-Y.*, Chen, G.-Y., Chen, J.-J., Young, L.-H., and Chang, L.-T. Application of artificial intelligence algorithms and low-cost sensors to estimate respirable dust in the workplace. Environment International. 2023, 182:1-9.
  4. Huang, C.-S., Liao, H.-T., Chen, C.-Y., Young, L.-H., Hsiao, T.-C., Chou, T.-I, Chang, J.-M., Lai, K.-L., and Wu, C.-F.*. Characterizing PM2.5 Secondary Aerosols via a Fusion Strategy of Two-stage Positive Matrix Factorization and Robust Regression. Aerosol and Air Quality Research. 2023, 23(12):230121.
  5. Wu, C.-A., Chen, Y.-T., Young, L.-H., Chang, P.-K., Chou, L.-T., Chen, A.Y., Hsiao, T.-C.. Ultrafine particles in urban settings: A combined study of volatility and effective density revealed by VT-DMA-APM. Atmospheric Environment. 2023, 312(2023):120054.
  6. Jung, C.-R.*, Chen, W.-T., Young, L.-H., Hsiao, T.-C.. A hybrid model for estimating the number concentration of ultrafine particles based on machine learning algorithms in central Taiwan. Environment International. 2023, 175:107937.
  7. Young, Li-Hao*, Hsiao, Ta-Chih Hsiao, Griffith, Stephen M., Huang, Ya-Hsin Huang, Hsieh, Hao-Gang Hsieh, Lin, Tang-Huang, Tsay, Lin, Yu-Jung Lin, Lai, Kuan-Lin Lai, Lin, Neng-Huei, Lin, Wen-Yinn. Secondary inorganic aerosol chemistry and its impact on atmospheric visibility over an ammonia-rich urban area in Central Taiwan. Environment Pollution. 2022, 312(2022):119951.
  8. Young, Li-Hao*, Chen, Wan-Yi, Wang, Chun-Chieh, Tang, Mau-Tsu, Tseng, Shao-Chin, Lin, Bi-Hsuan, Lai, Chau-Wei, Chen, Yu-Han Chen, Yang, Tzu-Ting, Lin, Yao-Tung. Insights to the 3D internal morphology and metal oxidation states of single atmospheric aerosol particles by synchrotron-based methodology. Chemosphere. 2022, 307(4):135799.
  9. Young, Li-Hao*, Hsu, Chih-Sheng, Hsiao, Ta-Chih, Lin, Neng-Huei, Tsay, Si-Chee Tsay, Lin, Tang-Huang, Lin, Wen-Yinn, Jung, Chau-Ren. Sources, transport, and visibility impact of ambient submicrometer particle number size distributions in an urban area of central Taiwan. Science of The Total Environment. 2022, 856(2023):159070.
  10. Ho, Ming-Shing, Lin, Ming-Yeng, Wang, Jung-Der, Young, Li-Hao, Hsu, Hui-Tsung, Hwang, Bing-Fang, Tsai, Perng-Jy*. An Integrated Approach to Characterize Temporal–Spatial Variations in PM2.5 Concentrations at the Ground Level and Its Implication on Health Impact Assessments. Frontiers in Environmental Science. 2022, 10:119001.
  11. Laiman, V., Hsiao, Ta-Chih, Wang, Yu-Hui, Young, Li-Hao, Chao, How-Ran, Lin, Tang-Huang, Heriyanto, Didik Setyo, Chung, Hsiao-Chi*. Contributions of acidic ions in secondary aerosol to PM2.5 bioreactivity in an urban area. Atomspheric Environment. 2022, 275(2022):119001.
  12. Young, Li-Hao*, Lai, Chau-Wei, Lu, Jau-Huai, Yang, Hsi-Hsien, Wang, Lin-Chi, Chen, Yu-Han. Elevated emissions of volatile and nonvolatile nanoparticles from heavy-duty diesel engine running on diesel-gas co-fuels. Science of The Total Environment. 2022, 821(2022):153459.
  13. Ting, Yu-Chieh, Young, Li-Hao, Lin, Tang-Huang, Tsay, Si-Chee, Chang, Kuo-En, Hsain, Ta-Chih*. Quantifying the impacts of PM2.5 constituents and relative humidity on visibility impairment in a suburban area of eastern Asia using long-term in-situ measurements. Environment Pollution. 2021.
  14. Hsiao, Ta-Chih*, Chou, Li-Ti, Pan, Shih-Yu, Young, Li-Hao, Chi, Kai-Hsien, Chen, Albert Y.. Chemically and temporally resolved oxidative potential of urban fine particulate matter. Environment Pollution. 2021, 291(2021):118206.
  15. Chang*, T.Y., Tsai, C.C., Wu, C.F., Chang, L.T., Chuang, K.J., Chuang, H.C., and Young, L.-H. Development of land-use regression models to estimate particle mass and number concentrations in Taichung, Taiwan. Atmos. Environ. 2021, 14, 118303.
  16. Xu, K., Cui*, K., Young, L.-H., Wang, Y.F., Hsieh*, Y.K., Wan, S. and Zhang, J. Air quality index, indicatory air pollutants and impact of COVID-19 event on the air quality near central China. Aerosol. Air Qual. Res. 2020, 20(6), 1204-1221.
  17. Hsiao, T.C., Chuang, H.C., Griffith, S.M., Chen, S.J. and Young*, L.-H. COVID-19: An aerosol’s point of view from expiration to transmission to viral-mechanism. Aerosol. Air Qual. Res. 2020, 20(5), 905-910.
  18. Xu, K., Cui*, K., Young*, L.-H., Hsieh, Y.K., Wang, Y.F., Zhang, J. and Wan, S. Impact of the COVID-19 Event on Air Quality in Central China. Aerosol. Air Qual. Res. 2020, 20(5), 915-929.
  19. Chang*, T.Y., Yu, T.Y., Liu, C.S., Young, L.-H., and Bao, B.Y. Occupational noise exposure and its association with incident hyperglycaemia: A retrospective cohort study. Sci. Rep. 2020, 10(1), 1-10.
  20. Tsai, P.J., Young, L.-H., Hwang, B.F., Lin, M.Y., Chen, Y.C. and Hsu*, H.T. Source and health risk apportionment for PM2. 5 collected in Sha-Lu area, Taiwan. Atmos. Pollut. Res. 2020, 11(5), 851-858.
  21. Dhital, N.B., Yang*, H.H., Wang, L.C., Hsu, Y.T., Zhang, H.Y., Young, L.-H., and Lu, J.H. VOCs emission characteristics in motorcycle exhaust with different emission control devices. Atmos. Pollut. Res. 2019, 10(5), 1498-1506.
  22. Que, D.E., Chao*, H.R., Hsu, Y.C., Cui, K., Chen, S., Tayo, L.L., Arcega, R.D., Tsai, Y.I., Lu, I.C., Wang, L.C., Young, L.-H., Yu, K.J., Lai, C.y., Hou, W.C., and Lin S.L. Emission of carbonyl compounds from cooking oil fumes in the night market areas. Aerosol. Air Qual. Res. 2019, 19(7), 1566-1578.
  23. Lin, M.Y., Guo, Y.X., Chen, Y.C., Chen, W.T., Young, L.-H., Lee, K.J., Wu, Z.Y. and Tsai*, P.J. An instantaneous spatiotemporal model for predicting traffic-related ultrafine particle concentration through mobile noise measurements. Sci. Total Environ. 2018, 636, 1139-1148.
  24. Hsiao*, T.C., Young, L.-H., Tai, Y.C. and Chang, P.K. Effects of temperature, pressure, and carrier gases on the performance of an aerosol particle mass analyser. Atmos. Meas. Tech. 2018, 11(8), 4617-4626.
  25. Yang*, S.Y., Lin, J.M., Young, L.-H., and Chang, C.W. Mass-size distribution and concentration of metals from personal exposure to arc welding fume in pipeline construction: a case report. Ind. Health 2018, 2017-0197.
  26. Jung, C.R., Young, L.-H., Hsu, H.T., Lin, M.Y., Chen, Y.C., Hwang*, B.F. and Tsai*, P.J. PM2. 5 components and outpatient visits for asthma: A time-stratified case-crossover study in a suburban area. Environ. Pollut. 2017, 231, 1085-1092.
  27. Chen, C.Y., Lee*, W.J., Wang*, L.C., Chang, Y.C., Yang, H.H., Young, L.-H., Lu, J.H., Tsai, Y.I., Cheng, M.T. and Mwangi, J.K., Impact of high soot-loaded and regenerated diesel particulate filters on the emissions of persistent organic pollutants from a diesel engine fueled with waste cooking oil-based biodiesel. Appl. Energy 2017, 191, 35-43.
  28. Yang*, T.T., Hsu, C.Y., Chen, Y.C., Young, L.-H., Huang, C.H. and Ku, C.H. Characteristics, sources, and health risks of atmospheric PM2. 5-bound polycyclic aromatic hydrocarbons in Hsinchu, Taiwan. Aerosol. Air Qual. Res. 2016, 17(2), 563-573.
  29. Young, L.-H., Li, C.H., Lin, M.Y., Hwang, B.F., Hsu, H.T., Chen, Y.C., Jung, C.R., Chen, K.C., Cheng, D.H., Wang, V.S., Chiang, H.C., and Tsai*, P.J. Field performance of a semi-continuous monitor for ambient PM2. 5 water-soluble inorganic ions and gases at a suburban site. Atmos. Environ. 2016, 144, 376-388.
  30. Liu, C.S., Young, L.-H., Yu, T.Y., Bao, B.Y. and Chang*, T.Y. Occupational noise frequencies and the incidence of hypertension in a retrospective cohort study. Am. J. Epidemiol. 2016, 184(2), 120-128.
  31. Hsiao*, T.C., Young, L.-H., Tai, Y.C. and Chen, K.C. Aqueous film formation on irregularly shaped inorganic nanoparticles before deliquescence, as revealed by a hygroscopic differential mobility analyzer–Aerosol particle mass system. Aerosol Sci. Technol. 2016, 50(6), 568-577.
  32. Cheng, M.T., Chen, H.J., Young*, L.-H., Yang, H.H., Tsai, Y.I., Wang, L.C., Lu, J.H. and Chen, C.B. Carbonaceous composition changes of heavy-duty diesel engine particles in relation to biodiesels, aftertreatments and engine loads. J. Hazard. Mater. 2015, 297, 234-240.
  33. Kuo, Y.C., Chen, Y.C., Lin, M.Y., Young, L.-H., Hsu, H.T., Liou, S.H., Wu, T.N., Wang, L.C. and Tsai*, P.J. Ambient air concentrations of PCDD/Fs, coplanar PCBs, PBDD/Fs, and PBDEs and their impacts on vegetation and soil. Int. J. Environ. Sci. Technol. 2015, 12(9), 2997-3008.
  34. Young, L.-H., Kuo, H.W., Chiang*, C.F. Environmental health risk perception of a nationwide sample of Taiwan college students majoring in engineering and health sciences. Hum. Ecol. Risk Assess. 2015, 21, 307–326.
  35. Chen, C.-H., Soo, J.-C., Young, L.-H., Wu, T.-N., Yoon, C., Lai, C.-Y., Tsai*, P.-J. Effect of quartz particle size on XRD quantifications and its implications for field collected samples. Aerosol Air Qual. Res. 2014, 14, 1573–1583.
  36. Tsai*, Y.I., Kuo, S.C., Young, L.-H., Hsieh, L.Y., Chen, P.T. Atmospheric dry plus wet deposition and wet-only deposition of dicarboxylic acids and inorganic compounds in a coastal suburban environment. Atmos. Environ. 2014, 89(2014), 696-706.
  37. Chang, Y.C., Lee*, W.-J., Yang, H.-H., Wang*, L.C., Lu, J.-H., Tsai, Y.I., Young, L.-H., Cheng, M.-T., Chiang, C.-J. (2014, May). Reducing emissions of persistent organic pollutants from a diesel engine by fueling with water containing butanol diesel blends. Environ. Sci. Technol. 2014, 48(10), 6010-6018.
  38. Chang, Y.C., Lee, W.-J., Wang*, L.C., Yang, H.-H., Cheng, M.-T., Lu, J.-H., Tsai, Y.I., Young, L.-H.: Effects of waste cooking oil-based biodiesel on the toxic organic pollutant emissions from a diesel engine, Appl. Energy 2014, 113, 631-638.
  39. Young*, L.-H., Lee, S.-H., Kanawade, V. P., Hsiao, T.-C., Lee, Y. L., Hwang, B.-F., Liou, Y.-J., Hsu, H.-T. and Tsai, P.-J.: New particle growth and shrinkage observed in subtropical environments, Atmos. Chem. Phys. 2013, 13, 547-564.
  40. Young, L.-H., Lin, Y.-H., Lin, T.-H., Tsai*, P.-J., Wang, Y.-F., Hung, S.-M., Tsai, C.-J. and Chen, C.-W.: Field application of a newly developed personal nanoparticle sampler to selected metalworking operations, Aerosol Air Qual. Res. 2013, 13, 849-861.
  41. Young*, L.-H., Wang, Y.-T., Hsu, H.-C., Lin, C.-H., Liou, Y.-J., Lai, Y.-C., Lin, Y.-H., Chang, W.-L., Chiang, H.-L. and Cheng, M.-T.: Spatiotemporal variability of submicrometer particle number size distributions in an air quality management district, Sci. Total Environ. 2012, 425, 135-145.
  42. Young*, L.-H., Liou, Y.-J., Cheng, M.-T., Lu, J.-H., Yang, H.-H., Tsai, Y.-I., Wang, L.-C., Chen, C.-B. and Lai, J.-S.: Effects of biodiesel, engine load and diesel particulate filter on nonvolatile particle number size distributions in heavy-duty diesel engine exhaust, J. Hazard. Mater. 2012, 199-200, 282-289.
  43. Erupe, M.E., Benson, D.R., Li, J., Young, L.H., Verheggen, B., Al-Refai, M., Tahboub, O., Cunningham, V., Frimpong, F., Viggiano, A.A., Lee*, S.-H., Correlation of aerosol nucleation rate with sulfuric acid and ammonia in Kent, Ohio: An atmospheric observation, J. Geophys. Res. 2010, 115, D23216, doi:10.1029/2010JD013942.
  44. Morishita*, M., Keeler, J.G., McDonald, J.D., Wagner, J.G., Young, L.H., Utsunomiya, S., Ewing, R.C., Harkema, J.R., Source-to-receptor pathways of anthropogenic PM2.5 in Detroit, Michigan: Comparison of two inhalation exposure studies; Atmos. Environ. 2009, 43, 1805-1813.
  45. Young, L.H., Benson, D.R., Kameel, F.R., Pierce, J.R., Junninen, H., Kulmala, M., Lee*, S.-H., Laboratory studies of H2SO4/H2O binary homogeneous nucleation from the SO2+OH reaction: evaluation of the experimental setup and preliminary results; Atmos. Chem. Phys. 2008, 8, 4997-5016.
  46. Benson, D.R., Young, L.H., Lee*, S.-H., Campos, T.L., Rogers, D.C., Jensen, J., The effects of airmass history on new particle formation in the free troposhere: case studies; Atmos. Chem. Phys. 2008, 8, 3015-3024.
  47. Lee*, S.-H., Young, L.H., Benson, D. R., Suni, T., Kulmala, M., Junninen, H., Campos, T.L., Rogers, D.C., Jensen, J., Observations of nighttime new particle formation in the troposphere; J. Geophys. Res. 2008, 113, D10210, doi:10.1029/2007JD009351.
  48. Benson, D. R., Young, L.H., Kameel, F.R., Lee*, S.-H., Laboratory-measured nucleation rates of sulfuric acid and water binary homogeneous nucleation from the SO2 + OH reaction; Geophys. Res. Lett. 2008, 35, L11801, doi:10.1029/2008GL033387.
    49.  
  49. Young*, L.H., Keeler, G.J., Summertime ultrafine particles in urban and industrial air: Aitken and nucleation mode particle events; Aerosol Air Qual. Res. 2007, 7, 379-402.
    50.  
  50. Young, L.H., Benson, D.R., Montanaro, W., Lee*, S.-H., Pan, L.L., Rogers, D., Jensen, J., Stith, J., Davis, C.A., Campos, T.L., Bowman, K.P., Cooper, W.A., Leit, L.R., Enhanced new particle formation observed in the northern midlatitude tropopause region; J. Geophys. Res. 2007, 112, doi: 10.1029/2006JD008109.
    51.  
  51. Young, L.H., Keeler*, G.J., Characterization of ultrafine particle number concentration and size distribution during a summer campaign in southwest Detroit; J. Air Waste Manage. Assoc. 2004, 54, 1079-1090.
    52.  
  52. Young, L.H., Wang*, C.S., Characterization of n-alkanes in PM2.5 of the Taipei aerosol; Atmos. Environ. 2002, 36, 477-482.
    53.  

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Department of Occupational Safety and Health, College of Public Health, China Medical University, Taiwan
No.100, Sec. 1, Jing-Mao Road, Taichung City, Taiwan 40604, R.O.C 886-4-22967979 ext. 6201