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.
The inter-annual and inter-season q-values of the driving factors on PM2.5 concentrations in the Yellow River Basin. (PRE denotes the accumulated precipitation; PRS denotes the surface air pressure; RHU denotes the 2-meter relative humidity; SSD denotes sunshine duration; TEM denotes air temperature; WIN denotes the 10-meter wind velocity; NH3 denotes ammonia; NOx denotes nitrogen oxides; P_PM denotes primary PM2.5; SO2 denotes sulfur dioxide; VOC denotes volatile organic compounds).
