Emission estimates and trends (1990–2000) for megacity Delhi and implications

Gurjar, Bhola R.; Aardenne, J. A. van; Lelieveld, Jos; Mohan, Manju

doi:10.1016/j.atmosenv.2004.05.057

Cited by 229 publications

(164 citation statements)

References 27 publications

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“…The construction of inventory for TSPM for years 2000 and 2004 is based on some earlier studies (Mohan and Dube, 2001;Gurjar et al, 2004;Mohan et al, 2007a;.…”

Section: Emission Inventorymentioning

confidence: 99%

Performance Evaluation of AERMOD and ADMS-Urban for Total Suspended Particulate Matter Concentrations in Megacity Delhi

Mohan

Bhati

Sreenivas

et al. 2011

Aerosol Air Qual. Res.

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Regulatory models are useful tools for air quality management. However, application of models without proper evaluation may lead to erroneous conclusions and thus systematic model evaluation studies are essential prior to model application. Often, models are evaluated for a specific source and climatic condition and then find application to another source and climatic condition without this realization. In this context, two well known regulatory models namely; AERMOD (07026) and ADMS-Urban (2.2) are applied throughout the world in various countries without rigorous evaluation procedures. An attempt is made here to undertake performance evaluation of these models for a tropical city such as Delhi in India which is a well known megacity of the world. The models have been applied to estimate ambient particulate matter concentrations for the years 2000 and 2004 over seven sites in Delhi and model evaluation and inter-comparison is performed. Concentrations have been estimated for winter season in both years as the low temperature and low speed wind conditions in this season make it most significant from air pollution point of view. It has been found that though both the models have a tendency towards under-prediction, estimated values by both models agree with the observed concentrations within factor of two. However ADMS-Urban results show better trend correlation with observed values while bias between observed and estimated values is lower for AERMOD Results. The models include all the urban sources (ie. elevated point sources, vehicular traffic, domestic and other sources) in the city. The model validation is discussed in the light of emission inventory, requisite meteorological inputs and statistical performance measures. Performance evaluation of the above models is examined based on boundary layer parameterisations used in these models. Intercomparison of the model performances is envisaged to be useful for application to air quality management and further development of these models.

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“…The construction of inventory for TSPM for years 2000 and 2004 is based on some earlier studies (Mohan and Dube, 2001;Gurjar et al, 2004;Mohan et al, 2007a;.…”

Section: Emission Inventorymentioning

confidence: 99%

Performance Evaluation of AERMOD and ADMS-Urban for Total Suspended Particulate Matter Concentrations in Megacity Delhi

Mohan

Bhati

Sreenivas

et al. 2011

Aerosol Air Qual. Res.

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“…It was found that among all livestock categories, buffaloes were the highest (80-85%) contributor of CH 4 emissions from the LEF, followed by the LMM ( Where symbols '-' denotes 'not available' and '*' refer to EFs taken from IPCC/OECD/IEA (1997). Gurjar et al (2004) …”

Section: Discussionmentioning

confidence: 99%

“…Over the last decade, most of the research in India has focused on emissions from vehicles and industries as major source of air pollutants (Kumar et al, 2008(Kumar et al, , 2013Nagpure and Gurjar 2012;Shukla et al, 2013;Babaee et al, 2014). Key source such as agriculture sector has received a very little attention by previous studies (Gurjar et al, 2004Sharma et al, 2002). The NCT of Delhi includes an area of 1,484 km 2 ; of which 369.35 and 1113.6 km 2 is designated as rural and urban areas, respectively, and therefore making it the largest city in terms of area in the country (DSA, 2010;DSH, 2011).…”

Section: Increasing Industrial and Vehicle Population Over The Past Dmentioning

confidence: 99%

“…Existing inventories (e.g. Gurjar et al, 2004;CPCB, 2010) Table S1. Due to unavailability of rice cultivation area with water management practices, total rice cultivated area (Table S2) was scaled with the ratio of national rice cultivation whereas water management practices were adopted as given by Parashar et al (2003).…”

Section: Increasing Industrial and Vehicle Population Over The Past Dmentioning

confidence: 99%

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Gaseous emissions from agricultural activities and wetlands in national capital territory of Delhi

Gurjar

Nagpure

Kumar

2015

Ecological Engineering

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“…According to Gurjar et al (2004), the thermal power plants of Delhi were responsible for about 68 per cent of SO2 and 80 per cent of TSP (Total Suspended Particles) between 1990-2000.…”

Section: Cities and Energy Productionmentioning

confidence: 99%

Land, Infrastructure and Ecological Sustainability in Indian Cities

Wankhade¹,

Balakrishnan²

2011

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Land is one of the most contested and valuable of natural resources in urban areas. While many of the contestations may be primarily due to its economic value as territory, land is far more than the observable space. Land is an integral part of the urban ecological fabric and is closely linked to the dynamics of other resources like water and energy. The relationship between the nature and intensity of land-use, resource consumption and ecosystem functioning is of critical significance for urban sustainability. Urban spatial patterns which are mostly a result of planning paradigms and decisions, land availability and transportation choices can significantly influence urban resource consumption. This paper first examines broader issues around land, focusing specifically on land cover, land use, and densities, and then examines the inter-linkages between land and the infrastructure sectors of water, energy, and transport. The paper examines the current literature on Indian cities as well as some key international articles, focusing in particular on identifying the knowledge gaps and next steps for research, practice and policy in this domain.

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Emission estimates and trends (1990–2000) for megacity Delhi and implications

Cited by 229 publications

References 27 publications

Performance Evaluation of AERMOD and ADMS-Urban for Total Suspended Particulate Matter Concentrations in Megacity Delhi

Performance Evaluation of AERMOD and ADMS-Urban for Total Suspended Particulate Matter Concentrations in Megacity Delhi

Gaseous emissions from agricultural activities and wetlands in national capital territory of Delhi

Land, Infrastructure and Ecological Sustainability in Indian Cities

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