Performance evaluation of air quality dispersion models at urban intersection of an Indian city: a case study of Delhi city

Khare, Mukesh; Nagendra, S.M. Shiva; Gulia, Sunil

doi:10.2495/air120221

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…Vehicles in major metropolitan cities of India are estimated to account for 70% of CO, 50% of HC's, 30-40% of NOx, 30% of SPM and 10% of SO 2 of total load of these cities, of which 2/3 rd is contributed by 2wheelers alone. This rapid growth of motor vehicles ownership and activities in Indian cities are causing a wide range of serious health, environmental and socio-economic impacts (Khare et al, 2012). Air pollutants, both gaseous and particulate, are known to produce a measurable effect on plants.…”

Section: Introductionmentioning

confidence: 99%

Assessment of air pollution tolerance levels of some plant species of Jammu

Kour

Raina

2014

ECJ

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The air pollution tolerance indices (APTI) of four plant species: Ficus religiosa, Polyalthia longifolia, Pterospernum acerifolium and Thevetia peruviana growing along roadsides at polluted site (Satwari-Bikram Chowk road) in Jammu city has been worked out and compared with the plants growing at the reference location (New University Campus) to categorize plants as sensitive or resistant. The plants were analysed for leaf relative water content (RWC), ascorbic acid content (AA), total leaf chlorophyll (T Ch) and leaf extract pH to compute the APTI values which indicated that all plants belong to sensitive category as per the index range given by Gaikwad et al. (2006). The values of all the studied biochemical parameters and APTI has been observed to decline in the plants growing at polluted sites in comparison to plants growing at reference site. However, among the plant species growing at polluted site, Ficus religiosa has been observed to be comparatively more tolerant against air pollutants with a maximum APTI value (4.76±0.16) whereas Pterospernum acerifolium is more sensitive to air pollutants with minimum APTI value (1.65±0.19). The order of tolerance among these plants has been observed to be: Ficus religiosa> Polyalthia longifolia> Thevetia peruviana> Pterospernum acerifolium. The result also indicated that combining variety of these parameters gave a more reliable result than those of individual parameter.

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Section: Introductionmentioning

confidence: 99%

Assessment of air pollution tolerance levels of some plant species of Jammu

Kour

Raina

2014

ECJ

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“…AERMOD [13] and ADMS-Urban [14], are highly advanced and complex but user-friendly. They are performing satisfactorily with old generation line source dispersion models such as CALINE 4, GFLSM and DFLSM [15]. Kumar et al, [16] observed that AERMOD has a tendency to under-predict both under stable and unstable conditions when the model was applied for Ohio, USA.…”

Section: Introductionmentioning

confidence: 91%

Performance evaluation of ISCST3, adms-urban and aermod for urban air quality management in a mega city of India

Gulia¹,

Nagendra²,

Khare³

2014

Int. J. SDP

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Urban air quality has deteriorated in last few decades in the mega cities of both developed and developing countries. Many mathematical models have been widely used as prediction tool for urban air quality management in developed countries. However, applications of these models are limited in developing countries including India due to lack of suffi cient validation studies. In this paper, three state-of-the-art air quality models namely AERMOD, ADMS-Urban and ISCST3 have been used to predict the air quality at an intersection in Delhi city, India, followed by their performance evaluation and sensitive analysis under different meteorological conditions. The models have been run for different climatic conditions, i.e. summer and winter season to predict the concentration of carbon monoxide (CO), nitrogen dioxide (NO 2 ) and PM 2.5 (diameter size less than 2.5 µm). The The causal nature of these Gaussian based models may be one of the reasons for difference in performance of the models, because these are sensitive to quality and quantity of input data on meteorology and emission sources.

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“…Gases and particles get emitted in the atmosphere from natural and anthropogenic activities viz. residential cooking, vehicles, industries, construction, and deforestation [4][5][6][7]. About half of the urban population being monitored is exposed to air pollution that is at least 2.5 times higher than the levels with WHO air quality guidelines.…”

Section: Introductionmentioning

confidence: 99%

An empirical study towards air pollution control in Agra, India: a case study

2020

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Air pollution affects many people in developed and developing countries worldwide. It is costing around 2% and 5% of GDP (gross domestic product) in developed and developing countries, respectively. The air qualities have been deteriorating day by day and now the situation has become worst. An increase in air pollution will worsen the environment and human health status. Hence, there is an urgent need for air pollution control. Air pollution can be controlled by reducing the emission of air pollutants from industrial and domestic sources through source emission control decrease in fuel combustion, modifying technology, and growing plants. This is the ripe time to take some bold steps in controlling the menace of air pollution. The scientific bodies, NGOs, researchers, and policymakers have made several efforts but pollution levels are increasing everywhere. The UNEP (The United Nations Environment Program), IPCC (The Intergovernmental Panel on Climate Change), etc., have prepared several reports and organize every year COPs (Conference of Parties) meeting but all have gone in vain as the main culprit feedback has not been taken into the consideration. So, a sincere effort is required to fight the effects of climate change. This paper presents a case study of the Agra region over the Indo-Gangetic basin. The air quality of different sites in Agra has been evaluated, and a survey has been conducted to get the public opinion on air pollution, causes, impacts, and solutions. 75% of respondents were aware of the poor air quality of Agra, however, the percentage of respondent who was unaware is not small. It is a matter of concern. 85% of respondents think that poor education and unawareness are the major cause of air pollution. They suggested education, value-based education to improve air quality. Based on these outcomes, it has been concluded that nature-based solutions for air pollution control can be achieved by making people environmentally conscious through value-based education.

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Performance evaluation of air quality dispersion models at urban intersection of an Indian city: a case study of Delhi city

Cited by 4 publications

References 11 publications

Assessment of air pollution tolerance levels of some plant species of Jammu

Assessment of air pollution tolerance levels of some plant species of Jammu

Performance evaluation of ISCST3, adms-urban and aermod for urban air quality management in a mega city of India

An empirical study towards air pollution control in Agra, India: a case study

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