Variations in the concentration, source activity, and atmospheric processing of PM2.5-associated water-soluble ionic species over Jammu, India

Bamotra, Sarita; Kaushal, Deepika; Yadav, Sher Singh; Tandon, Ankit

doi:10.1007/s10661-022-10249-8

Cited by 5 publications

(6 citation statements)

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“…In this direction, the National Clean Air Programme (NCAP) was launched by the Ministry of Environment, Forest and Climate Change in 2019. The identification of 131 non-attainment cities, setting the targets for source apportionment (SA) studies and PM reduction, are some of the major landmark objectives of NCAP (Yadav et al 2022). Gradually, it was realized that as air pollutants undergo horizontal and vertical transport and transformation in the atmosphere, it will be more appropriate to follow the airshed approach (Sharma and Yadav 2023).…”

Section: Overview Of Air Pollution In India and Bb-air Pollution Linkmentioning

confidence: 99%

“…The long-range transport of CRB emissions from NW India is noticed even in the eastern Himalayas (Mukherjee et al 2022a). Various sources of air pollution in India include secondary aerosols, vehicular emissions, biomass/refuse burning, industrial emission, dust, fossil fuel combustion and sea salt (Yadav et al 2022). Amongst various natural and anthropogenic sources, ABB (for field clearing (CRB), human-driven FFs, BB for cooking/heating/recreational purposes and open waste burning]) is one of the major sources of air pollution in India (Gunthe et al 2021, Mishra et al 2023.…”

Section: Overview Of Air Pollution In India and Bb-air Pollution Linkmentioning

confidence: 99%

“…A further description of these ratios can be found in section 5.1. Levoglucosan is a commonly used source marker for BB emissions (Nirmalkar et al 2019, Sullivan et al 2019a, Jiang et al 2020, Pio et al 2022, Yadav et al 2022, Devaprasad et al 2023 and is said to be present in fine particulates arising from domestic wood burning. By pyrolyzing cellulose and hemicellulose, two isomers of levoglucosan known as mannosan and galactosan are formed, which are also used as BB source markers (Li et al 2021).…”

Section: Carbonaceous Particulatesmentioning

confidence: 99%

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Air pollution from biomass burning in India

Tripathi,

Yadav,

Sharma

2024

Environ. Res. Lett.

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Air Pollution is the most difficult challenge India is facing today and anthropogenic biomass burning (ABB) is one of the major and least understood sources leading to serious health and climate implications by affecting air quality, visibility, atmospheric chemistry, the Earth’s radiation budget, and biogeochemical cycling. Scientific understanding on the composition, chemistry, and regional dynamics of BB emissions is still limited constraining the implementation of appropriate research and policy interventions. The broad categories, associated complex emissions and spatio-temporal variations of ABB in India are discussed here. Major types of ABB prevalent year-round all over India include BB for cooking, heating purpose and open waste burning. Moreover, crop residue burning (CRB) in Indo-Gangetic Plain (IGP) during pre (April-May) and post-monsoon (October-November) seasons; CRB in South-India during January-February; forest fires in Central India and slash & burn agriculture in North-East India during March-May are the other dominant sources active during specific months and regions. Over the IGP, CRB along with other episodic ABB events and stagnant meteorology result in severe air quality and poor visibility (< ~300 m) with reported daily mean PM2.5 concentration shooting upto 15 times higher than Central Pollution Control Board standards. When compared with wheat residue burning, higher fire counts and emissions are reported during paddy residue burning events. During winters, BB contribution to 37% of aerosol oxidative potential in Delhi indicates its health implications. Meta-analysis of data obtained from representative source apportionment studies on PM10 shows >24% BB contribution in Assam, Ahmedabad, Kanpur, and Visakhapatnam; 20-24% in Patiala and Kolkata; 10-14% in Delhi. In PM2.5, BB contribution of >24% in Ahmedabad and Agra; 15-19% in Delhi, Mumbai, and Kolkata is reported while in PM1, BB contributed 19-24% in Kanpur, Patiala, and Assam and <10% in Delhi. Observed spatio-temporal variations in ABB sources and composition over India call for region specific solutions through airshed-based management.

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Section: Overview Of Air Pollution In India and Bb-air Pollution Linkmentioning

confidence: 99%

Section: Overview Of Air Pollution In India and Bb-air Pollution Linkmentioning

confidence: 99%

Section: Carbonaceous Particulatesmentioning

confidence: 99%

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Air pollution from biomass burning in India

Tripathi,

Yadav,

Sharma

2024

Environ. Res. Lett.

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“…Several studies have been carried out in India and worldwide to understand PM 2.5 aerosols (P. Kumar, Kumar, & Yadav, 2018; Rengarajan et al, 2007; Trivedi et al, 2014; Wang et al, 2006). But there is still a scarcity of information on WSII composition in PM 2.5 for most of the North‐western Himalayas especially the Jammu region (Bamotra et al, 2022), despite the fact that this region encounters multiplicity of PM 2.5 sources and pronounced meteorological changes over seasons. The North‐western Himalayas is an ecologically sensitive region because of its distinctive geological settings, where air quality and regional climate changes impact not just local inhabitants but also the entire North‐western Indian region.…”

Section: Introductionmentioning

confidence: 99%

“…for most of the North-western Himalayas especially the Jammu region (Bamotra et al, 2022), despite the fact that this region encounters multiplicity of PM 2.5 sources and pronounced meteorological changes over seasons. The North-western Himalayas is an ecologically sensitive region because of its distinctive geological settings, where air quality and regional climate changes impact not just local inhabitants but also the entire North-western Indian region.…”

Section: Introductionmentioning

confidence: 99%

Seasonal variation and sources of PM_2.5 bound water‐soluble ions at Jammu city in the foothills of the North‐western Himalayas, India

et al. 2023

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In this study, PM2.5 aerosols were collected from the campus of the University of Jammu situated along the Shivalik foothills of the North‐western Himalayas in the Jammu urban area to understand the seasonal variability of PM2.5 mass concentrations and associated water‐soluble inorganic ions (WSIIs). Results showed that the annual average PM2.5 mass concentrations were average 65.02 μg/m3 which significantly exceeded the annual National Ambient Air Quality Standards (40 μg/m3) by ~1.6 times. In addition, PM2.5 and WSIIs mass concentrations exhibited significant seasonal variability with the highest average concentrations observed during winter and the least during monsoon. Furthermore, WSIIs accounted for 24.56% of PM2.5 mass annually. Cl−, Na+, Ca2+ and Mg2+ depicted higher concentrations in summer whereas higher mass concentrations of SO42−, NO3− and NH4+ observed during winter pointed to their formation from gas to particulate conversion mechanisms. The variability of source strength during peak tourist seasons in holidays, festivities and new year appears to have significantly accounted for high PM2.5 in the study area. Additionally, meteorological conditions also appear to have played an important role in secondary aerosol formation which is noticeable from the high correlation observed among SO42−–NO3− (0.97), NH4+–SO42− (0.69), K+–Cl− (0.85), NH4+–NO3− (0.64), SO42−–K+ (0.63), NH4+–Cl− (0.65) at p < .05 during winter. On the other hand, significant correlations (p < .01) observed between Ca2+–Mg2+ (0.94), SO42−–Ca2+ (0.78) and SO42−–Mg2+ (0.89) during summer indicated their primary origin as crustal‐based sources.

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Characterization of Atmospheric Carbonaceous Species in PM10 over Darjeeling, an Eastern Himalayan Region of India

Rai,

Chatterjee,

Mandal

et al. 2023

Lecture Notes in Mechanical Engineering

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Variations in the concentration, source activity, and atmospheric processing of PM2.5-associated water-soluble ionic species over Jammu, India

Cited by 5 publications

References 93 publications

Air pollution from biomass burning in India

Air pollution from biomass burning in India

Seasonal variation and sources of PM_2.5 bound water‐soluble ions at Jammu city in the foothills of the North‐western Himalayas, India

Characterization of Atmospheric Carbonaceous Species in PM10 over Darjeeling, an Eastern Himalayan Region of India

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Variations in the concentration, source activity, and atmospheric processing of PM2.5-associated water-soluble ionic species over Jammu, India

Cited by 5 publications

References 93 publications

Air pollution from biomass burning in India

Air pollution from biomass burning in India

Seasonal variation and sources of PM2.5 bound water‐soluble ions at Jammu city in the foothills of the North‐western Himalayas, India

Characterization of Atmospheric Carbonaceous Species in PM10 over Darjeeling, an Eastern Himalayan Region of India

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Seasonal variation and sources of PM_2.5 bound water‐soluble ions at Jammu city in the foothills of the North‐western Himalayas, India