Air Pollution Monitoring
Air Quality Sensors

This Environment Dashboard project tracks air pollution in Nepal. Pratiman-Neema Memorial Foundation (PNMF), working with the Provincial Five Ministry of Social Development (MOSD), has initiated an air pollution tracking program in Province Five. Building on the work done by the students of UNM's Nepal Study Center (NSC) and in collaboration with PNMF, this program has installed several PurpleAir sensors across several cities with the help of the Provincial Government. These sensors measure outdoor PM2.5 and PM1.0 levels.

PM, or "particulate matter," is a measure of the amount of course, inhalable particles suspended in air in migrograms per cubic meter. PM2.5 specifically measures the quantity of particles that have a diameter of 2.5 microns or less. Similarly, PM1.0 measures particles with a diameter of 1.0 micron or less. PM1.0 is a sub measurement of PM2.5, since PM2.5 includes particles with diameters less than 1 micron. These small particles are the most damaging to health, and have been linked to many conditions including lung cancer and chronic lung disease. The World Health Organization has designated airborne particulates as a Group 1 Carcinogen. Various research studies have found that finer particulate matter (PM1.0) may play a greater role than PM2.5 in association with cardivascular disease.

Table 1 shows EPA air quality index (PM2.5 or PM1.0) ranges, see here for more information.

EPA Air Quality Index
Sensor List

Sensors are grouped by district.

Rupandehi District
The Rupandehi district lies in the Lumbini Zone, the birth place of Lord Buddha. It is situated in the Chure range and is bordered by Palpa district on the north, India on the south, Kapilvastu district on the west, and Nawalparasi on the east. Rupandehi has an area of 1,360 square kilometers and a total population of 982,851.
Parasi District
The Parasi District is located in Province No. 5, one of 7 provinces in Nepal. Ramgram, the town that houses the district’s headquarters, is less than 10 kilometers from the Indian border. Parasi has an area of 634.88 square kilometers and a total population of 321,058.
Sensor Map

The embedded PurpleAir map below shows installed sensor locations.