Comparative study of indoor air pollution using traditional and improved cooking stoves in rural households of Northern India

Singh, Sudha; Gupta, Gyan Prakash; Kumar, Brijesh; Kulshrestha, Umesh Chandra

doi:10.1016/j.esd.2014.01.007

Cited by 62 publications

(41 citation statements)

References 27 publications

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“…The samples were stored in polypropylene bags and refrigerated. The method of extraction of filters and analysis of aerosol samples was used as reported by Singh et al (2014).…”

Section: Sample Collectionmentioning

confidence: 99%

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Long Range Transport and Wet Deposition Fluxes of Major Chemical Species in Snow at Gulmarg in North Western Himalayas (India)

Kumar

Singh

Gupta

et al. 2016

Aerosol Air Qual. Res.

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The study reports snow chemistry and long range transport of pollutants at Gulmarg in north-western Himalayan region of India during winters of 2012-2013. The pH of snowmelt varied between 5.16 and 7.68 with an average of 5.90. The frequency distribution of pH of snowmelt showed that the maximum number of samples (31%) had pH between 6.81 and 7.20. However, 12% samples were observed to be acidic (below 5.6 respectively. Both local emissions as well as long range transport (LRT) of pollutants were found to be the sources of these ionic species. Backward airmass trajectory calculations showed that this site received airmasses from six major sectors i.e., i) North Atlantic Ocean origin (NAO), ii) African origin (Af), iii) Middle East origin (ME), iv) European origin (Eu), v) Western India origin (InW), vi) Pakistan origin (Pk). The highest average pH (7.58) of the snowfall was noticed during InW airmasses which had the lowest ratios of nssSO 4 2-/nssCa 2+ and NO 3 -/nssCa 2+ . Very high pH has been observed in precipitation samples at Indian sites due to buffering of acidic components by atmospheric dust rich in CaCO 3 . The lowest pH (4.94) was noticed for ME airmasses which had the highest nssSO 4 2-/nssCa 2+ and NO 3 -/nssCa 2+ ratios. Data of present study was compared with a study reported almost three decades ago. We noticed a drastic increase in the concentrations of anthropogenic components such as nssSO 4 2-(114%), NO 3 -(109%) and NH 4 + (90%). This is probably due to increase in LRT of pollutants as well as local activities during past three decades.

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“…The samples were stored in polypropylene bags and refrigerated. The method of extraction of filters and analysis of aerosol samples was used as reported by Singh et al (2014).…”

Section: Sample Collectionmentioning

confidence: 99%

“…(Singh et al, 2014). Manual titration method was used for estimation of HCO 3 -using 0.0025 N H 2 SO 4 (APHA, 1998).…”

Section: Chemical Analysis Of Snowfall Samplesmentioning

confidence: 99%

Long Range Transport and Wet Deposition Fluxes of Major Chemical Species in Snow at Gulmarg in North Western Himalayas (India)

Kumar

Singh

Gupta

et al. 2016

Aerosol Air Qual. Res.

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“…Samples of fine aerosols (Teflon filters) and SO 2 were also collected during this period by using a handy sampler (Envirotech) at a flow rate of 1 LPM. Details of the method have been given elsewhere (Singh et al 2014). A total of six samples of dustfall, aerosols and SO 2 were collected representing the duration of foliar sample.…”

Section: Collection Of Foliar Dustfall and Other Atmospheric Constitumentioning

confidence: 99%

Industrial dust sulphate and its effects on biochemical and morphological characteristics of Morus (Morus alba) plant in NCR Delhi

Gupta

Singh

Kumar

et al. 2015

Environ Monit Assess

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Abundance of CaCO3 rich soil dust is a typical feature of atmospheric environment in the Indian region. During prevailing dry weather conditions, dustfall is deposited onto the foliar surfaces of plant affecting their morphology, stomata and the levels of biochemical constituents. This study reports the chemical characteristics of dustfall, its effect on foliar morphology and biochemical constituents of a medicinal plant (Morus alba) at two sites which are differentiated on the basis of landuse pattern, viz., (i) residential, Jawaharlal Nehru University (JNU), and (ii) industrial, Sahibabad (SB), located in the National Capital Region (NCR) of Delhi. Dustfall was characterized for major anions (F(-), Cl(-), NO3 (-) and SO4 (--)) and cations (Na(+), NH4 (+), K(+), Mg(++) and Ca(++)). Biochemical parameters such as chlorophyll a, chlorophyll b, total chlorophyll, carotenoid, proline and ascorbic acid were determined in foliar samples. The results showed that the dustfall fluxes of all the major ions were found to be higher at the industrial site (SB) as compared to the residential site (JNU). Foliar analysis revealed that the levels of biochemical parameters were more affected at SB site due to higher levels of dust SO4 (--) contributed by various anthropogenic sources resulting in more stressful conditions affecting the biochemistry of the plant. The possible entry pathways for dust SO4 (--) into foliar cells are also discussed in the paper. It was noticed that the deposition of urban dust was responsible for the damage of trichome, epidermis, cuticle and stomatal guard cells significantly affecting foliar morphology. SB exhibited more damage to these morphological parts suggesting that industrial dust is harmful to the plants.

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“…However, these impacts might be reduced by using ICS as shown in the study of U.C. Kulshrestha et al [1], where a 32% reduction of aerosol and gases components was achieved. This study has also estimated about 41% of biomass was saved by using ICSs for cooking.…”

Section: Introductionmentioning

confidence: 99%

Energy storage integrated solar stove: A case of solar Injera baking in Ethiopia

Tesfay

Nydal

Kahsay

2014

IEEE Global Humanitarian Technology Conference (GHTC 2014)

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Many of today's solar cookers lack energy storage and their applications have been limited to day time use while the sun is shining. In addition these cookers need longer cooking time and are less versatile to users compared with the traditional wood stoves. This article presents tests of a solar stove with and integrated heat storage designed to satisfy a particular need of some east African countries to bake their daily food (Injera). The prototype was tested in the solar laboratories at NTNU and Mekelle University, and presented for community demonstrations in Mekelle. Steam is used as heat carrier between a receiver in the focal point of a concentrating dish and a solar salt based latent heat storage. The stored heat enables users to bake at any time. The storage has a capacity to retain usable thermal energy for about one to two days depending on the amount of insulation. This system can supplement the existing electric and biomass Injera stoves and provide inexpensive and clean energy solution for food preparation. Solar baking provides benefits in terms of human health, environmental strain and high costs associated with biomass fuel.

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Comparative study of indoor air pollution using traditional and improved cooking stoves in rural households of Northern India

Cited by 62 publications

References 27 publications

Long Range Transport and Wet Deposition Fluxes of Major Chemical Species in Snow at Gulmarg in North Western Himalayas (India)

Long Range Transport and Wet Deposition Fluxes of Major Chemical Species in Snow at Gulmarg in North Western Himalayas (India)

Industrial dust sulphate and its effects on biochemical and morphological characteristics of Morus (Morus alba) plant in NCR Delhi

Energy storage integrated solar stove: A case of solar Injera baking in Ethiopia

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