The emissions from increasing anthropogenic activities has led to degradation in ambient air
quality of Lumbini (UNESCO world heritage site) and its surrounding environments. The
presence of high concentrations of air pollutants is of concern because of its implications for
public health, atmospheric visibility, chemistry, crop yield, weather and climate on a local to
regional scale. The study region experiences wide-spread on-field agricultural residue
burning, particularly in the months of November (paddy residue burning) and April (wheat …