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Spatio-temporal assessment of ambient air quality, their health effects and improvement during COVID-19 lockdown in one of the most polluted cities of India
- Source :
- Environmental Science and Pollution Research International, Environmental Science and Pollution Research
- Publication Year :
- 2020
- Publisher :
- Springer Berlin Heidelberg, 2020.
-
Abstract
- The present work aims to investigate seasonal variations in air pollution levels in Lucknow and assess the ambient air quality of the city together with highlighting the health impacts of major pollutants like PM10, PM2.5, SO2, NO2, Pb, Ni and aerosols from 2010 to 2019. The maximum and minimum values of PM10, PM2.5, SO2, NO2, Pb and Ni were found to be 270.75 and 122.45 μg/m3, 124.95 and 95.52 μg/m3, 25.60 and 8.05 μg/m3, 75.65 and 23.85 μg/m3, 0.66 and 0.03 μg/m3 and 0.07 and 0.01 ng/m3, respectively. Health impact of particulate matter has also been assessed with AirQ+, and it was estimated that long-term exposure of PM10 was attributed to between 37 and 48% for post-neonatal (age 1–12 months) mortality rate due to all causes, whereas long-term attributable proportions in mortality due to exposure of PM2.5 were to about 19 to 28% from all causes. Further, an attempt has also been made to evaluate the impact of lockdown amid COVID-19 on the ambient air quality of Lucknow. During the lockdown, PM2.5 levels reduced by 65% (at Gomti Nagar), 23% (at central school), 79% (at Lalbagh) and 35% (at Talkatora), due to which, air quality index of Gomti Nagar came down to 43, well below 50 which falls in the healthy range. NO2 levels also came down. However, levels of SO2 did not show significant reduction. Correlating the data between aerosol optical depth and Angstrom exponent by Pearson correlation analysis revealed a significant positive correlation (r = 0.65, P
- Subjects :
- Angstrom exponent
Health, Toxicology and Mutagenesis
Air pollution
AirQ+
India
010501 environmental sciences
medicine.disease_cause
01 natural sciences
Toxicology
AQI
Lockdown
medicine
Environmental Chemistry
Humans
Cities
Air quality index
Aerosol
0105 earth and related environmental sciences
Pollutant
Air Pollutants
SARS-CoV-2
Mortality rate
COVID-19
Infant
General Medicine
Particulates
Pollution
Health effect
Communicable Disease Control
Environmental science
Particulate Matter
Research Article
Environmental Monitoring
Subjects
Details
- Language :
- English
- ISSN :
- 16147499 and 09441344
- Database :
- OpenAIRE
- Journal :
- Environmental Science and Pollution Research International
- Accession number :
- edsair.doi.dedup.....d1093f92a978b40a34b063ee90d536eb