Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Temporal correlation between nitrogen dioxide concentration and spreadability of COVID-19 in Hubei. Temporal correlation between NO2 concentration and R0 in 11 cities in Hubei. Except for Xianning, all of those cities had significant positive correlations (r > 0.51, p < 0.005) between NO2 (with 12-day time lag) and daily R0 (normalized based on Wuhan’s daily R0).
