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.
Pearson correlation analysis of different variables. Apmean: mean air pressure per week; Aqi: air quality index; dT: the weekly temperature difference; GDP: gross domestic product; Hmean: mean relative humidity per week; Spmean: mean wind speed per week; Tmax: maximum temperature per week; Tmean: mean temperature per week; Tmin: minimum temperature per week.
