Journal of Clinical Orthopaedics and Trauma, Год журнала: 2022, Номер 28, С. 101826 - 101826
Опубликована: Март 25, 2022
Язык: Английский
Nature Communications, Год журнала: 2023, Номер 14(1)
Опубликована: Дек. 15, 2023
Abstract Here we retrieve global daily 1 km gapless PM 2.5 concentrations via machine learning and big data, revealing its spatiotemporal variability at an exceptionally detailed level everywhere every day from 2017 to 2022, valuable for air quality monitoring, climate change, public health studies. We find that 96%, 82%, 53% of Earth’s populated areas are exposed unhealthy least one day, week, month in respectively. Strong disparities exposure risks duration exhibited between developed developing countries, urban rural areas, different parts cities. Wave-like dramatic changes clearly seen around the world before, during, after COVID-19 lockdowns, as is mortality burden linked fluctuating pollution events. Encouragingly, only approximately one-third all countries return pre-pandemic levels. Many nature-induced episodes also revealed, such biomass burning.
Язык: Английский
Процитировано
61
Stochastic Environmental Research and Risk Assessment, Год журнала: 2022, Номер 36(11), С. 3653 - 3683
Опубликована: Апрель 2, 2022
Язык: Английский
Процитировано
24
Frontiers in Sustainable Cities, Год журнала: 2021, Номер 3
Опубликована: Сен. 29, 2021
The COVID-19 pandemic has affected severely the economic structure and health care system, among others, of India rest world. magnitude its aftermath is exceptionally devastating in India, with first case reported January 2020, number risen to ~31.3 million as July 23, 2021. imposed a complete lockdown on March 25, which impacted migrant population, industrial sector, tourism industry, overall growth. Herein, impacts unlock phases ambient atmospheric air quality variables have been assessed across 16 major cities covering north-to-south stretch country. In general, all pollutants showed substantial decrease AQI values during compared reference period (2017–2019) for almost India. On an average, about 30–50% reduction observed PM 2.5 , 10 CO, maximum 40–60% NO 2 herein, while data was average northern, western, southern SO O 3 increase over few well other cities. Maximum (49%) north period. Furthermore, changes pollution levels significant three steady subsequent phase Our results show effect loading key anthropogenic due less-to-no impact from activities vehicular emissions, relatively clean transport masses upwind region. These indicate that by adopting cleaner fuel technology avoiding poor combustion urban agglomerations could bring down at least 30%.
Язык: Английский
Процитировано
28
Sustainable Cities and Society, Год журнала: 2021, Номер 76, С. 103504 - 103504
Опубликована: Окт. 29, 2021
Язык: Английский
Процитировано
28
Vaccine, Год журнала: 2022, Номер 40(15), С. 2242 - 2246
Опубликована: Март 7, 2022
Язык: Английский
Процитировано
20
Heliyon, Год журнала: 2025, Номер 11(2), С. e41762 - e41762
Опубликована: Янв. 1, 2025
Air quality has emerged as a significant concern due to its direct impact on human health. Over recent decades, India witnessed marked deterioration in air rising anthropogenic emissions and climate change. The COVID-19 lockdown offered unique opportunity examine pollutant reductions under restricted activities. This study conducted long-term analysis of five major Indian cities-Delhi, Kolkata, Bengaluru, Hyderabad, Visakhapatnam-by analysing variations PM2.5, PM10, NOx, NH3, SO2, CO, O3, incorporating de-weathering strategy isolate meteorological influences. In Delhi, we observed PM10 (92.50-136.70 μg/m³), NOx (62.13-151.91 ppb), CO (0.53-0.88 mg/m³), which shifted health risks from the 'extreme' 'low' category. Visakhapatnam also experienced notable declines levels (7.50-17.13 ppb). Conversely, Hyderabad exhibited no reductions, AQHI increased (+0.97) concentrations. Ozone concentrations showed increase across cities, attributed VOC-limited effects. revealed that variability long-range transport airmass played critical roles shaping These findings highlight complexity urban dynamics underscore benefits emission for public
Язык: Английский
Процитировано
0
Journal of Modelling in Management, Год журнала: 2025, Номер unknown
Опубликована: Март 17, 2025
Purpose This study aims to examine the evidence and magnitude of sector-specific herding behaviour in Indian equity market, focusing on COVID-19 epoch. Design/methodology/approach uses high-frequency daily data 11 sector indices National Stock Exchange from January 2010 December 2022. Cross-sectional absolute deviation quantile regression estimation methods using dummy variables are used capture skewed time series distribution across a range return quantiles sub-periods corresponding The beta herd strength variation intensity decipher impact is examined. Findings statistical results significant at lower returns entire sample period, implying herding. Notably, pre-COVID-19 during high stocks Public Sector Banks post-COVID-19 low information technology (IT) was observed. However, estimates were all sectors phase COVID-19, with IT exhibiting maximum increase strength. Research limitations/implications Robust techniques dispersion provide insights for practitioners broaden understanding market efficiency actionable responses. Furthermore, findings emphasise regulatory monitoring prevent speculative bubbles advocate targeted investor education programmes mitigate panic-driven investment decisions. Originality/value paper pioneer providing an alternative understanding, contrast traditional one, into micro-level analysis phenomenon lens instrumental broadening dynamics turbulent periods, highlighting importance informed
Язык: Английский
Процитировано
0
Scientific Reports, Год журнала: 2025, Номер 15(1)
Опубликована: Апрель 24, 2025
Abstract Free-roaming domestic dogs (FRDs) are among the most abundant carnivores on earth and have coexisted with humans for over 15,000 years, yet increases in negative interactions transmission of zoonotic diseases, precipitates calls population management. Despite significant investment FRD sterilisation India, where rabies is endemic, there limited evidence its impact reducing sizes. Therefore, robust evaluation effectiveness fertility control programmes necessary. To address this, we implemented a Before After Control Intervention (BACI) framework first multi-site randomised controlled trial FRDs. We conducted single intensive campaigns five areas, achieving female coverages 58–66%. observed decrease puppies lactating females reduction residents’ reports barking, common problem associated There were no differences adult counts between intervention sites during 2-year follow-up. However, unmeasured immigration into emigration out study areas may confounded counts. One-off, albeit intense, open populations require substantial unlikely to reduce size isolation, though be some problematic behaviours improved animal welfare.
Язык: Английский
Процитировано
0
Environmental Monitoring and Assessment, Год журнала: 2022, Номер 194(3)
Опубликована: Фев. 17, 2022
Язык: Английский
Процитировано
12
Aerosol Science and Engineering, Год журнала: 2023, Номер 7(2), С. 237 - 250
Опубликована: Март 13, 2023
Язык: Английский
Процитировано
6