COVID-19 Infection Risk Calculator

Department: Urban Planning and Design
Research Centre: Sustainable High Density Cities lab;
Active Dates: 2021-2022

This calculator was developed by Dr. Jianxiang Huang and Prof. Phil Jones for stakeholders to estimate the disease transmission risks in a range of indoor environments. The methodologies and underlying formula have been outlined in a recent research paper.



Related Publications

Buonanno, G., Stabile, L., & Morawska, L. (2020). Estimation of airborne viral emission: Quanta emission rate of SARS-CoV-2 for infection risk assessment. Environment International, 141, 105794. https:// doi:10.1016/j.envint.2020.105794.

EPA. (2011). Exposure Factors Handbook: 2011 Edition. U.S. Environmental Protection Agency. https:// doi:EPA/600/R-090/052F.

Huang, J.; Hao, T.; Liu, X.; Jones, PJ, Ou, C.; Liang, W; Liu, F. (2022) “Airborne Transmission of the Delta Variant of SARS-CoV-2 in an Auditorium,” Building and Environment, Vol. 219, 109212

Huang, J.; Jones, P.; Zhang, A.; Hou, S.S.; Spengler, J.D. (2021), “Outdoor Airborne Transmission of Coronavirus Among Apartments in High-Density Cities,” Frontiers in Built Environment, Vol. 7, 666923

Lendacki, F. R., Teran, R. A., Gretsch, S., Fricchione, M. J., & Kerins, J. L. (2021). COVID-19 Outbreak Among Attendees of an Exercise Facility – Chicago, Illinois, August-September 2020. MMWR Surveillance Summaries, 70(9), 321-325. https:// doi:10.15585/mmwr.mm7009e2.

Li, Y., Qian, H., Hang, J., Chen, X., Cheng, P., Ling, H., Wang, S., Liang, P., Li, J., Xiao, S., Wei, J., Liu, L., Cowling, B. J., & Kang, M. (2021). Probable airborne transmission of SARS-CoV-2 in a poorly ventilated restaurant. Building and Environment, 196. https:// doi:10.1016/j.buildenv.2021.107788.

Wang, Q.; Lung, DC.; Chan, PT.; Jia, W.; Dung, CH.; Miao, T.; Huang, J.; Chen, W.; Wang, Z.; Leung, KM.; Xu, P.; , Lin, Z.; Wong, D.; Tse, H.; Wong, S.; Choi,G. To,K.; Cheng, V.; Yuen, KY.; Li, Y. (2022), “High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong,” Interface Focus, Vol. 12 (202), 10063

Wells, W. F. (1955). Airborne Contagion and Air Hygiene. An Ecological Study of Droplet Infections. Harvard University Press.

Yang, W., & Shaman, J. (2022). SARS-CoV-2 transmission dynamics in South Africa and epidemiological characteristics of the Omicron variant. Health Sciences. https:// doi:10.1101/2021.12.19.21268073

Enlarge Photo: COVID-19 Infection Risk Calculator 1