Anomalous Features of Black Carbon and Particulate Matter Observed Over Rural Station During Diwali Festival of 2015

Devara, P. C. S.; Alam, Mahbubul; Dumka, U. C.; Tiwari, Suresh; Srivastava, Atul

doi:10.1007/978-981-10-5792-2_24

Cited by 7 publications

(7 citation statements)

References 19 publications

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“…Existing research on the impact of Diwali on air quality in India has focused on measuring the concentration of pollutants in the air around Diwali [ 6 ], [ 7 ], [ 8 ], [ 9 ], [ 10 ], [ 11 ], [ 12 ], [ 13 ], [ 14 ]. For example, [ 8 ] found Diwali day 24 hour average concentrations, in Lucknow, to be 2.49 and 5.67 times higher when compared with the concentration of pre-Diwali and normal day respectively.…”

Section: Introductionmentioning

confidence: 99%

Estimates of air pollution in Delhi from the burning of firecrackers during the festival of Diwali

Ghei

Sane

2018

PLoS ONE

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Delhi has had the distinction of being one of the most polluted cities in the world, especially in the winter months from October—January. These months coincide with the religious festival of Diwali. It is argued that air quality gets worse in the aftermath of Diwali on account of firecrackers that get burned during the festival. We use hourly data on PM 2.5 particulate concentration from 2013 to 2017 to estimate the Diwali effect on air quality in Delhi. We improve on existing work by using the event study technique as well as a difference-in-difference regression framework to estimate the Diwali effect on air quality. The results suggest that Diwali leads to a small, but statistically significant increase in air pollution. The effect is different across locations within Delhi. To our knowledge, this is the first causal estimate of the contribution of Diwali firecracker burning to air pollution.

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Section: Introductionmentioning

confidence: 99%

Estimates of air pollution in Delhi from the burning of firecrackers during the festival of Diwali

Ghei

Sane

2018

PLoS ONE

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“…Minimum BC concentration was noticed in daytime between 12:00 and 16:00 h (IST). The BC mass concentration is attributed to the combined effects of fumigation due to an increasing mixing layer in the morning time (Alappattu & Kunhikrishnan, 2009; Babu & Moorthy, 2002; Devara et al, 2015; Kulshrestha et al, 1998). The study location is situated in a densely inhabited area comprised of residents from urban and semiurban region.…”

Section: Resultsmentioning

confidence: 99%

Assessment of aerosol optical and physical properties and implications for radiative effects over the semiarid region of Indo‐Gangetic Basin

Gupta,

Jangid,

Kumar

2023

Geological Journal

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This study assesses the physical and optical properties and estimated the radiative forcing of aerosol at Agra over the Indo‐Gangetic Basin (IGB) during July 2016–December 2019 using black carbon (BC) mass concentration (AE‐33 aethalometer), data sets from satellite and model simulations. The optical properties of aerosol and radiative forcing have been measured by the Optical and Physical Properties of Aerosols and Clouds (OPAC) and Santa Barbara Discrete Ordinate Radiative Transfer Atmospheric Radiative Transfer (SBDART) model. The high BC mass concentration has been observed in November and lowest in August. An adverse meteorological condition due to a combination of temperature and low wind speed results in poor dispersion in the wintertime is a common factor for high concentration level pollutants over Agra. The diurnal and temporal cycle of BC mass concentration exhibits a high concentration at nighttime due to the lower atmospheric boundary layer. The seasonal variation of absorption coefficient (βabs) and Absorption Angstrom Exponent (AAE) is found to be higher during post‐monsoon and lowest in monsoon season. This suggests that black carbon concentration over Agra is mainly generated from crop burning, waste burning, automobile exhaust and long‐range transport from Punjab and Haryana as the present site is downwind. OPAC‐derived aerosol optical depth (AOD), single‐scattering albedo (SSA), Angstrom Exponent (AE) and asymmetry parameter (AsyP) were estimated to be 0.57 ± 0.07, 0.78 ± 0.16, 0.99 ± 0.21 and 0.81 ± 0.15, respectively. AOD and AE from the OPAC and the moderate resolution imaging spectroradiometer (MODIS) have shown the consistent relationship. The mean radiative forcing is 18.3 ± 2.1 W m−2 at the top of the atmosphere while, at the surface, net radiative forcing is −42.4 ± 7.2 and 59.1 ± 6.5 W m−2 at the atmosphere during the study period. Vertical profiles were estimated using the observations from Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite and the change in heating rate from the SBDART model over Agra.

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“…The BC mass concentration is calculated from the rate of change of attenuation of light from an LED source used in the instrument. More details of the experimental station, description of the Aethalometer and accuracies involved in the estimation of BC data are available elsewhere [ [19] , [20] , [21] , [22] ]. The density of BC datasets that have gone into the different parameter evaluation and model calculations are presented in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

Three-year black carbon aerosol synthesis over a pristine location surrounded by hillocks in Haryana state, India

Devara,

Raju,

Sonbawne

et al. 2024

Heliyon

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Anomalous Features of Black Carbon and Particulate Matter Observed Over Rural Station During Diwali Festival of 2015

Cited by 7 publications

References 19 publications

Estimates of air pollution in Delhi from the burning of firecrackers during the festival of Diwali

Estimates of air pollution in Delhi from the burning of firecrackers during the festival of Diwali

Assessment of aerosol optical and physical properties and implications for radiative effects over the semiarid region of Indo‐Gangetic Basin

Three-year black carbon aerosol synthesis over a pristine location surrounded by hillocks in Haryana state, India

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