Vehicles Emissions Under Different Driving Conditions in Urban Areas

Coman, Gelu; Burciu, Salvadore Mugurel; Baroiu, Nicușor

doi:10.37358/rc.19.2.6930

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…The ensuing phenomenon will appear in the atmospheric precipitation of inland cities, and the composition of sea salt ions is higher than that of coastal cities. Of course, the final conclusion needs further observation, analysis and verification [48][49][50][51][52][53][54][55][56][57][58].…”

Section: Variation Characteristics Of Precipitation Ion Compositionmentioning

confidence: 98%

Analysis on Change of Precipitation pH and Chemical Characteristics of Acid Rain in Liaoning Province (2007�2018)

Deping¹,

Yan²,

Xie³

et al. 2020

Rev. Chim.

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Acid rain, as one of the outputs of toxic and harmful chemicals from factories, is a serious environmental problem, especially in China, which has harmful ecological consequences and has a direct impact on vegetation and human health. Based on the data of acid rain observation station of Liaoning Meteorological Bureau from 2007 to 2018, the variation of precipitation pH and the distribution of acid rain in Liaoning Province in the past 12 years were analyzed. The result shows: First, the average pH value of annual precipitation in Liaoning Province is 5.55, which belongs to weak acid rain area. The frequency of acid rain is 12.56%, and the ratio of acid rain to total precipitation is 15.48%. More than 1/5 of the stations are located in the acid rain prone area, among which Dalian and Dandong are seriously polluted, being close to the grade of acid rain frequent area. Second, from 2007 to 2018, the precipitation pH in Liaoning Province fluctuated and increased year by year, with an average annual increase of 0.077 pH, and the pollution of acid rain decreased year by year; especially after 2014, Liaoning Province has exited from weak acid rain area, with its precipitation pH tending to be neutral year by year. Third, acid rain pollution in Liaoning Province is most serious in winter, followed by autumn and summer; in the first six years (2007-2012), the pollution in February was the most serious, and in the last six years (2013-2018), the pollution in December was the most serious, which was significantly worse than the previous six years. Fourth, more efforts have been made to control air pollution in all parts of the country, and the annual decrease in acid precursor emissions is the fundamental reason for the variation of precipitation pH and the improvement of acid rain pollution in Liaoning Province, while the precipitation pH and acid rain distribution in Liaoning Province are sensitive to the relevant environmental control measures taken by the state in recent years. However, the change of acid rain pollution reminds us to attach great importance to new pollution components and causes.

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Section: Variation Characteristics Of Precipitation Ion Compositionmentioning

confidence: 98%

Analysis on Change of Precipitation pH and Chemical Characteristics of Acid Rain in Liaoning Province (2007�2018)

Deping¹,

Yan²,

Xie³

et al. 2020

Rev. Chim.

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“…For the compression ignition engine, according to the current anti-pollution legislation, it is important to measure the degree of smoke, the concentrations of nitrogen oxides, hydrocarbons and carbon dioxide emissions [3, 4, 6, and 7]. The composition of the exhaust gases depends on: engine speed and load, air/fuel ratio, engine wear, fuel system adjustment/ deregulation, turbocharger technical condition and, of course, the anti-pollution norm of the system implemented on the car [6][7][8]. All vehicles equipped with a diesel engine have been required to significantly reduce their nitrogen oxide emissions with the entry into force of the Euro 6 anti-pollution standard.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on the influence of diesel quality and additive for fuel on the smoke emission of diesel cars

Burciu

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The paper presents experimental determinations that highlight the substantial reduction of smoke in the exhaust gases for a car with a diesel engine with pollution norm Euro 4 in the case of using OMV MaxxMotion diesel and Super Diesel additive from Liqui Moly. For the load determinations when running on a horizontal road (by simulation on the chassis dynamometer V-Tech Dyno VT-2/B1), in case of using diesel with CN55 and Super Diesel additive from Liqui Moly, was found a smoke reduction of up to almost 50%, the larger reductions being at speeds above 110 km/h, which indicates a substantial reduction in smoke when running in extra-urban mode. At the same time, only the superior quality of diesel with cetane number 55 compared to that with cetane number 51, led to better combustion, so that the smoke emission was reduced by up to 33% at high speeds, this reduction being quite important up to 27% for lower speeds below 90 km/h.

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Creating Sustainable Urban Transportation Systems Through Innovative Traffic Management Strategies

Fadina,

Almetova,

Ivanova

et al. 2024

Springer Proceedings in Earth and Environmental Sciences

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Vehicles Emissions Under Different Driving Conditions in Urban Areas

Cited by 5 publications

References 7 publications

Analysis on Change of Precipitation pH and Chemical Characteristics of Acid Rain in Liaoning Province (2007�2018)

Analysis on Change of Precipitation pH and Chemical Characteristics of Acid Rain in Liaoning Province (2007�2018)

Experimental studies on the influence of diesel quality and additive for fuel on the smoke emission of diesel cars

Creating Sustainable Urban Transportation Systems Through Innovative Traffic Management Strategies

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