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. 2021 May 29;200:111374. doi: 10.1016/j.envres.2021.111374

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Fig. 1 — Temporal trends in SARS-CoV-2 wastewater data and COVID-19 cases on campus from August to December 2020.

(A) Average N1 and N2 gene concentrations of all buildings for each sampling date with the number of COVID-19 cases detected on campus. (B) Average N1 and N2/PMMV ratios of all buildings for each sampling date with the number of COVID-19 cases detected on campus. Error bars indicate standard deviation.