បណ្តុំទិន្នន័យ អង្គភាព ក្រុម Activity Stream បណ្តុំទិន្នន័យ Air Quality Data in Kathmandu Dataset containing air quality data in Kathmandu from Jan 1, 2015 to Mar 13, 2021 primarily aggregate PM2.5, PM10, ozone (O3), sulfur dioxide (SO2), nitrogen dioxide (NO2),... CSV