Emission inventory of inorganic trace gases from solid residential fuels over the National Capital Territory of India

Arya, Rahul; Ahlawat, Sakshi; Yadav, Lokesh; Rani, Martina; Mondal, Arnab; Jangirh, Ritu; Kotnala, Garima; Choudhary, Nikki; Rai, Akansha; Saharan, Ummed Singh; Yadav, Pooja; Banoo, Rubiya; Sharma, Sudhir Kumar; Gurjar, Bhola Ram; Nemitz, Eiko ORCID: https://orcid.org/0000-0002-1765-6298; Hamilton, Jacqueline F.; Mandal, Tuhin Kumar. 2024 Emission inventory of inorganic trace gases from solid residential fuels over the National Capital Territory of India. Environmental Science and Pollution Research, 31. 4012-4024. 10.1007/s11356-023-31278-x

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Abstract/Summary

In developing nations, solid residential fuels are the major sources of primary energy for various domestic activities. To date, the emission inventory of inorganic trace gases over National Capital Territory (NCT) was prepared using either default or country-specific emission factors. In this paper, we report (for the first time) the spatial variation of emission factors (EFs) of inorganic trace gases (SO2, NO, NO2, CO, CO2, and CH4) from the residential fuels used in slums and rural areas of NCT determined using dilution chamber in the laboratory. 147 residential fuel samples, including fuelwood, dung cake, crop residues, coal, etc., were collected at 149 NCT locations out of 675 slum clusters and 146 rural villages. The range of EF(s) of SO2 (0.02 ± 0.01 to 0.04 ± 0.01 g kg−1), CH4 (0.10 to 0.34 g kg−1), NO2 (0.01 to 0.02 g kg−1) is lower than the CO (3.55 ± 1.72 to 6.07 ± 1.53 g kg−1) and CO2 (0 to 129.45 ± 46.94 g kg−1). The north and north west districts of NCT are emission hotspots for CH4, NO, and NO2 emissions, whereas, the southern and northern areas of NCT are for CO2. These citywide emission inventories (0.05° × 0.05°) of inorganic trace gases are prepared using laboratory-determined EFs and available consumption data determined by recent survey information. Among solid residential fuels, fuel wood, and dung cake are two major contributors to inorganic trace gases in NCT.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1007/s11356-023-31278-x
UKCEH and CEH Sections/Science Areas:	Atmospheric Chemistry and Effects (Science Area 2017-)
ISSN:	1614-7499
Additional Information. Not used in RCUK Gateway to Research.:	Publisher link (see Related URLs) provides a read-only full-text copy of the published paper.
Additional Keywords:	inorganic trace gases, emission factor, residential fuels, emission estimation
NORA Subject Terms:	Atmospheric Sciences
Related URLs:	Publisher
Date made live:	03 Jan 2024 11:29 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/536543

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