Improvement in air quality and its impact on land surface temperature in major urban areas across India during the first lockdown of the pandemic

Parida, Bikash Ranjan; Bar, Somnath; Roberts, G.; Mandal, Shyama Prasad; Pandey, Arvind Chandra; Kumar, Manoj; Dash, Jadunandan

doi:10.1016/j.envres.2021.111280

Cited by 30 publications

(6 citation statements)

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“…Despite the decrease in the radiative forcing of aerosols during the global COVID-19 lockdown, the LST and air temperature did not show the expected rise and even decreased in Europe and North America ( Parida et al, 2021a ). Similar situations have also occurred in Iran ( Roshan et al, 2021 ) and India ( Parida et al, 2021b ). This negative surface temperature anomaly can be partly explained by the evapotranspiration and cooling effects of the late harvest of crops ( Chakraborty et al, 2021 ), but the reason for the reduction in the LST in urban areas with fewer crops remains unknown.…”

Section: Introductionsupporting

confidence: 69%

Changes in air pollution, land surface temperature, and urban heat islands during the COVID-19 lockdown in three Chinese urban agglomerations

Wang

Yuan

Zhang

et al. 2023

Science of The Total Environment

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Section: Introductionsupporting

confidence: 69%

Changes in air pollution, land surface temperature, and urban heat islands during the COVID-19 lockdown in three Chinese urban agglomerations

Wang

Yuan

Zhang

et al. 2023

Science of The Total Environment

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“…Despite that lockdown policies have generally produced a reduction of atmospheric emissions of several pollutants ( Parida et al, 2021 ), the pandemic has caused negative effects on water, as discussed in the previous sections. Specifically, in connection with water pollution, pandemic has a high impact on several SDGs.…”

Section: Resultsmentioning

confidence: 99%

SARS-CoV-2 and other pathogens in municipal wastewater, landfill leachate, and solid waste: A review about virus surveillance, infectivity, and inactivation

Anand

Kumari

et al. 2022

Environmental Research

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This review discusses the techniques available for detecting and inactivating of pathogens in municipal wastewater, landfill leachate, and solid waste. In view of the current COVID-19 pandemic, SARS-CoV-2 is being given special attention, with a thorough examination of all possible transmission pathways linked to the selected waste matrices. Despite the lack of works focused on landfill leachate, a systematic review method, based on cluster analysis, allows to analyze the available papers devoted to sewage sludge and wastewater, allowing to focalize the work on technologies able to detect and treat pathogens. In this work, great attention is also devoted to infectivity and transmission mechanisms of SARS-CoV-2. Moreover, the literature analysis shows that sewage sludge and landfill leachate seem to have a remote chance to act as a virus transmission route (pollution-to-human transmission) due to improper collection and treatment of municipal wastewater and solid waste. However due to the incertitude about virus infectivity, these possibilities cannot be excluded and need further investigation. As a conclusion, this paper shows that additional research is required not only on the coronavirus-specific disinfection, but also the regular surveillance or monitoring of viral loads in sewage sludge, wastewater, and landfill leachate. The disinfection strategies need to be optimized in terms of dosage and potential adverse impacts like antimicrobial resistance, among many other factors. Finally, the presence of SARS-CoV-2 and other pathogenic microorganisms in sewage sludge, wastewater, and landfill leachate can hamper the possibility to ensure safe water and public health in economically marginalized countries and hinder the realization of the United Nations' sustainable development goals (SDGs).

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“…Among the last 7 years, the relatively higher LST was seen in the years 2015 and 2016, whereas the lowest LST was in 2020. The lower LST in 2020 is mostly attributed to the slow-down of anthropogenic activities due to COVID-19 [ 54 ]. The higher LST in April 2015, 2016, and 2018 also revealed a higher number of burn area patches (Table 4 ).…”

Section: Discussionmentioning

confidence: 99%

Forest Fire Characterization Using Landsat-8 Satellite Data in Dalma Wildlife Sanctuary

Chaudhary

Pandey

Parida

2022

Remote Sens Earth Syst Sci

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A forest fire has caused a loss of biodiversity and forest heterogeneity and resulted in forest degradation and fragmentation. Remote sensing techniques have been widely used for locating and delineating forest fires. The present study has employed Landsat-8 satellite data during 2014–2020 for spatiotemporal analysis of forest fire in Dalma Wildlife Sanctuary (DWS). Normalized burn ratio (NBR) has been used to delineate forest fire-affected locations along with visual interpretation techniques. The results showed that an extensive area was burnt and deforested due to forest fire in DWS during 2014–2020. The burned areas due to forest fires within the notified forest boundary in DWS were 12.11 km 2 , 25.5 km 2 , 22.45 km 2 , 9.11 km 2 , 24.44 km 2 , 10.09 km 2 , and 1 km 2 during 2014, 2015, 2016, 2017, 2018, 2019, and 2020, respectively, whereas burned areas outside notified boundary were 2.24 km 2 , 4.15 km 2 , 1.48 km 2 , 3.29 km 2 , 3.31 km 2 , 1.9 km 2 , and 0.1 km 2 . According to visual image interpretation, the highest burned area was found in 2015 (25.5 km 2 ), whilst the least affected was found in 2020 (1 km 2 ), and fires were mainly seen in the degraded forests and open forest regions. The present study revealed that forest fire is more dominant in Asanbani, Pardih, Bhelaipahari, Gobargushi, Bamri, Andharjhor, Somadih, Koira, Tetla, Bochkamkocha, Sah, Rbera, and Jamdih locations/beats in DWS. Thereby, these forest beats need attention from forest managers to control fire-mediated forest degradation for the conservation and restoration of forests in DWS.

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Improvement in air quality and its impact on land surface temperature in major urban areas across India during the first lockdown of the pandemic

Cited by 30 publications

References 100 publications

Changes in air pollution, land surface temperature, and urban heat islands during the COVID-19 lockdown in three Chinese urban agglomerations

Changes in air pollution, land surface temperature, and urban heat islands during the COVID-19 lockdown in three Chinese urban agglomerations

SARS-CoV-2 and other pathogens in municipal wastewater, landfill leachate, and solid waste: A review about virus surveillance, infectivity, and inactivation

Forest Fire Characterization Using Landsat-8 Satellite Data in Dalma Wildlife Sanctuary

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