A study of air pollution by exhaust gases from cars in well courtyards of Saint Petersburg

Lozhkin, Vladimir; Lozhkina, Olga; Dobromirov, Viktor

doi:10.1016/j.trpro.2018.12.124

Cited by 32 publications

(11 citation statements)

References 20 publications

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“…In recent years, cities of India are among the top twenty most contaminated cities in the world and did not meet the environmental air quality criteria given by Central Pollution Control Board-India (CPCB) and WHO [86] , [87] . Emission from vehicle and industries are the major source for contributing the particulate matter [88] , [89] . A study was conducted to analyse the ambient air quality for Mumbai and Delhi and it was found that there was a substantial decrease in the emission of NO 2 , PM 10 and NO 2 was recorded during the lockdown time [90] .…”

Section: Resultsmentioning

confidence: 99%

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

Nandan

Siddiqui

Singh

et al. 2021

Journal of Environmental Chemical Engineering

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The human coronavirus disease-2019 (COVID-19) caused by SARS-CoV-2 is now a global pandemic. Personal hygiene such as hand-washing, the use of personal protective equipment, and social distancing via local and national lockdowns are used to reduce the risk of transmission of SARS-CoV-2. COVID-19 and the associated lockdowns may have significant impacts on environmental quality and ergonomics. However, limited studies exists on the impacts of COVID-19 and the associated lockdowns on environmental quality and ergonomics in low-income settings. Therefore, the present study investigated the impacts of the COVID-19 outbreak on socioeconomics, ergonomics and environment (water quality, air quality and noise) in Uttrakhand, India. Approximately 55% of respondents experienced headaches, and the other common health-related issue was back pain, with 45% of respondents having problems with their backs. Water and air quality significantly improved during the lockdown relative to the pre-lockdown period, but was observed to return to their previous characteristics afterwards. Lockdowns significant increased the concentration of indoor air pollutants while noise pollution levels significantly declined. In summary, lockdowns have adverse impacts on ergonomics, resulting in work-related human health risks. The impacts of lockdowns on environmental quality are mixed: temporary improvements on water and air quality, and noise reduction were observed, but indoor air quality deteriorated. Therefore, during lockdowns there is a need to minimize the adverse environmental and ergonomic impacts of lockdowns while simultaneously enhancing the beneficial impacts.

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Section: Resultsmentioning

confidence: 99%

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

Nandan

Siddiqui

Singh

et al. 2021

Journal of Environmental Chemical Engineering

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“…The design of the automobile should focus on the performance index of the automobile, together with some energy and environmental problems. The increase in car ownership will emit more pollutants [2], thus bringing great negative pressure to the ecological environment and people's lives. Hence, the research on how to improve fuel economy becomes increasingly urgent, and promotes the research work of automobile drag reduction and energy saving.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Heat Transfer Efficiency of an Automobile Engine under Different Grille Opening and Closing Conditions

Song¹

2022

Fluid Dynamics &Amp; Materials Processing

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Computational Fluid Dynamics is used to assess the thermal (heat transfer) performances of an automobile engine considering different grille opening and closing degrees. For this purpose the entire vehicle is modelled and three fundamental aspects are examined, namely, the open area of the air intake grille, the position of the upper and lower grilles and their shape. The results show that the opening area and position of the grille have some influence also on the aerodynamic characteristics of the automobile. With an increase in the opening angle of the grille, the C D (Drag Coefficient) value of the whole vehicle becomes higher. When the air intake grille of the car is fully open or closed, the C D value is 0.35434 or 0.31777, respectively, that is, the flow resistance in the engine compartment accounts for 10.32% of the C D value for the whole automobile.

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“…Transportation now and then plays a vital role in our dayday activities and has been crucial to the accessibility of systems. Social interactions and the economic growth experienced in the past two centuries are well enhanced by vehicular transportation (Zhou et al, 2018;Lozhkin et al, 2018). Individuals, families, entrepreneurs, firms, and so forth, exchange goods and services on daily basis through transportation to improve their economic lives and the standard of living.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Results of Air Pollution Status in Selected Roadsides in Jalingo, Taraba State Nigeria

Kanu

Targema

Abednego

2021

indones. j. env. man. sus.

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The rapid increase in vehicular activities in the past two centuries contributes vastly to air pollution levels. In as much as Social interactions and economic growth are well enhanced by vehicular transportation in many developing countries, it is unfortunate that exhausts from vehicles contribute immensely to ambient air quality especially in the urban areas. The concentrations of carbon monoxides (CO) and carbon dioxide (CO2) emissions in selected roadsides in Jalingo have been assessed. Four roads were used as sample locations where the concentration of CO2 and CO were measured using an air quality meter for four weeks. The mean concentration of CO2 and CO obtained were respectively as follows: 542.25 ppm and 7.49 ppm for the roadblock, 540.05 ppm and 5.55 ppm for Hammaruwa way, 598.81 ppm and 17.42 ppm for market road, and 463.80 ppm and 1.08 ppm for Nigerian Labour Congress (NLC) road (control). Based on the acceptable limit of CO2 (600 ppm), the Roadblock road, Hammaruwa way, and the NLC/control road are safe. Only the market road had value that exceeded the acceptable limit, and it may be attributed to high vehicular activities on the roadsides. Therefore, more alternative roads should be constructed in other to minimize traffic congestion and also, the use of nose masks should be encouraged. For the CO, all the sites are safe because they fall within the acceptable level of CO (1-70 ppm).

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A study of air pollution by exhaust gases from cars in well courtyards of Saint Petersburg

Cited by 32 publications

References 20 publications

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

COVID-19 pandemic in Uttarakhand, India: Environmental recovery or degradation?

Analysis of the Heat Transfer Efficiency of an Automobile Engine under Different Grille Opening and Closing Conditions

Preliminary Results of Air Pollution Status in Selected Roadsides in Jalingo, Taraba State Nigeria

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