State of air pollutants and related health risk over Haryana India as viewed from satellite platform in COVID-19 lockdown scenario
نویسندگان
چکیده
COVID-19 driven lockdown has affected air quality worldwide. Changes in pollutants concentration, Air Quality Index (AQI), and associated Excess Health Risk (ER%) were assessed using satellite data of before (2019), during (2020) periods the industrially, agriculturally developed highly populated area Haryana northern region Indo-Gangetic Plains. Parameters such as Aerosol Optical Depth (AOD), Particulate matters (PM), Sulphur Di-Oxide (SO2), Nitrogen (NO2), Carbon Mono-oxide (CO), Methane (CH4) derived validated ground-based observations (n = 23). The coefficient correlation (r) 0.91, 0.90, 0.95, 0.73, 0.81 0.80 established with AOD, PM2.5, PM10, SO2, NO2 CO, respectively. Significant reduction (p < 0.005) concentration pollutants, viz. 38% 55% 61% 31% 10% NO2, 5% CO 1% CH4 observed lockdown. 0.00) improvement was due to a 44% pollution level, which led ER% by 71%, is quite significant. AQI from ground showed high r2 i.e. 0.88 0.99 respectively, suggesting potential application for periodic assessment.
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ژورنال
عنوان ژورنال: Spatial Information Research
سال: 2021
ISSN: ['2366-3294', '2366-3286']
DOI: https://doi.org/10.1007/s41324-021-00410-9