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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Non-methane volatile organic compounds emitted from domestic fuels in Delhi
T2 - Emission factors and total city-wide emissions
AU - Mondal, Arnab
AU - Singh Saharan, Ummed
AU - Arya, Rahul
AU - Yadav, Lokesh
AU - Ahlawat, Sakshi
AU - Jangirh, Ritu
AU - Kotnala, Garima
AU - Choudhary, Nikki
AU - Banoo, Rubiya
AU - Rai, Akancha
AU - Yadav, Pooja
AU - Rani, Martina
AU - Lal, Shyam
AU - Stewart, Gareth J.
AU - Nelson, Beth S.
AU - Acton, Joe
AU - Vaughan, Adam Robert
AU - Hamilton, Jacqueline F.
AU - Hopkins, James R.
AU - Hewitt, C N
AU - Sahu, Lokesh K.
AU - Tripathi, Nidhi
AU - Sharma, S.K.
AU - Mandal, Tuhin K.
PY - 2021/10/31
Y1 - 2021/10/31
N2 - In controlled laboratory conditions, 62 samples of domestic fuels collected from 56 grids of Delhi were burnt to quantify the emissions of 23 non-methane volatile organic compounds (NMVOCs), i.e., alkanes (11), alkenes (6), alkynes (1) and aromatic compounds (5). The domestic fuels used for residential activities were comprised of 20 unique types of fuel woods, 3 species of crop residue, dung cakes and coal. These fuels are primarily used for cooking and water/space heating during winters. The current study reports the total emission budget of NMVOCs from domestic burning over Delhi. Furthermore, this study also compares the differences in EFs of NMVOCs which are calculated for different burning cycles and sample collection methods. The EFs of NMVOCs calculated from the samples collected during the flaming stage using canisters were analysed for 23 NMVOCs and then compared with same species emitted from complete burning cycle. In addition to this, 10 consumption and emission hotspot grids were also identified in Delhi; based on the ground survey and laboratory simulated results. The total annual usage of domestic fuels for the year 2019 was found to be 0.415 Mt/yr (million tonnes) in Delhi. 12.01 Gg/yr of annual NMVOC emissions was calculated from domestic fuel burning in which the emissions from dung cake and fuel wood dominated with 6.6 Gg/yr and 5.4 Gg/yr, respectively. The EFs of NMVOCs calculated using canister and online collection method differ significantly from each other. The flaming stage presented enhanced emissions compared to the complete burning cycle by ~7 times which suggests that the method of data analysis and the period of sample collection play a pivotal role in the preparation of an emission inventory and estimating the budget.
AB - In controlled laboratory conditions, 62 samples of domestic fuels collected from 56 grids of Delhi were burnt to quantify the emissions of 23 non-methane volatile organic compounds (NMVOCs), i.e., alkanes (11), alkenes (6), alkynes (1) and aromatic compounds (5). The domestic fuels used for residential activities were comprised of 20 unique types of fuel woods, 3 species of crop residue, dung cakes and coal. These fuels are primarily used for cooking and water/space heating during winters. The current study reports the total emission budget of NMVOCs from domestic burning over Delhi. Furthermore, this study also compares the differences in EFs of NMVOCs which are calculated for different burning cycles and sample collection methods. The EFs of NMVOCs calculated from the samples collected during the flaming stage using canisters were analysed for 23 NMVOCs and then compared with same species emitted from complete burning cycle. In addition to this, 10 consumption and emission hotspot grids were also identified in Delhi; based on the ground survey and laboratory simulated results. The total annual usage of domestic fuels for the year 2019 was found to be 0.415 Mt/yr (million tonnes) in Delhi. 12.01 Gg/yr of annual NMVOC emissions was calculated from domestic fuel burning in which the emissions from dung cake and fuel wood dominated with 6.6 Gg/yr and 5.4 Gg/yr, respectively. The EFs of NMVOCs calculated using canister and online collection method differ significantly from each other. The flaming stage presented enhanced emissions compared to the complete burning cycle by ~7 times which suggests that the method of data analysis and the period of sample collection play a pivotal role in the preparation of an emission inventory and estimating the budget.
KW - NMVOC
KW - Emission factor
KW - Emission inventory
KW - Domestic fuels
KW - Delhi
U2 - 10.1016/j.aeaoa.2021.100127
DO - 10.1016/j.aeaoa.2021.100127
M3 - Journal article
VL - 11
JO - Atmospheric Environment: X
JF - Atmospheric Environment: X
SN - 2590-1621
M1 - 100127
ER -