Figure 2. Representative air mass backward trajectories arriving at study area (http://www.arl.noaa.gov/HYSPLIT.php)

From

Spatial Variability of Finer Particulate Matter (PM2.5) Mass Concentrations over the Jammu Urban Area

Shivali Gupta, Akanksha Rajput, Rakesh Kumar

Applied Ecology and Environmental Sciences. 2021, 9(4), 465-469 doi:10.12691/aees-9-4-6