Impact of crop residue burning in Haryana on the air quality of Delhi, India.

ABSTRACT: Crop residue burning (CRB) over northern India is a major air quality and human health issue. The present study assesses the impact of PM₁₀, PM_2.5, NO₂ and SO₂, emitted during CRB activities in Haryana on the air quality of Delhi. The transition from pre-burning to burning period, in both rabi and kharif seasons, shows considerable increase in pollutant concentrations. PM₁₀ and PM_2.5 concentrations exceeded NAAQS limits by 2-3 times, while NO₂ and SO₂ stayed within the limits. MODIS fire observations used to estimate CRB fire counts (confidence ≥80%) shows that rabi (burning period) fires in Haryana are ~3 times higher and more intense than in kharif. Furthermore, backward trajectories shows air mass mo

SUBMITTER: Saxena P 

PROVIDER: S-EPMC8120930 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature