Results 21 to 30 of about 272,685 (311)

Potential of big data approach for remote sensing of vehicle exhaust emissions

open access: yesScientific Reports, 2021
At present, remote sensing (RS) is applied in detecting vehicle exhaust emissions, and usually the RS emission results in a definite vehicle specific power (VSP) range are used to evaluate vehicle emissions and identify high-emitting vehicles.
Lijun Hao   +4 more
doaj   +1 more source

Emissions Production by Exhaust Gases of a Road Vehicle’s Starting Depending on a Road Gradient

open access: yesSensors, 2022
An increasing number of motor vehicles are connected with negative environmental impacts in relation to their operation. Among the main negative effects are exhaust gas emissions production.
Branislav Šarkan   +4 more
doaj   +1 more source

Capturing the Variability in Instantaneous Vehicle Emissions Based on Field Test Data

open access: yesAtmosphere, 2020
Emission models are important tools for traffic emission and air quality estimates. Existing instantaneous emission models employ the steady-state “engine emissions map” to estimate emissions for individual vehicles.
Zhiqiang Zhai   +4 more
doaj   +1 more source

An empirical study of vehicle emissions under cordon and distance based road user charging, Leeds, UK. [PDF]

open access: yes, 2007
This paper presents the impact of road user charging (RUC) on vehicle emissions through application of traffic assignment and pollutant emission models.
Mitchell, G., Namdeo, A.
core   +1 more source

Current vehicle emission standards will not mitigate climate change or improve air quality

open access: yesScientific Reports, 2023
The vehicle emissions testing programme was conducted by the UK Department of Transport in 2016 in response to emissions tampering exposed in the Volkswagen (VW) emissions scandal. The programme identified large emissions discrepancies between real-world
Andrew Jiaxuan Law   +2 more
doaj   +1 more source

Long-term U.S transportation electricity use considering the effect of autonomous-vehicles: Estimates & policy observations [PDF]

open access: yes, 2018
In this paper, we model three layers of transportation disruption – first electrification, then autonomy, and finally sharing and pooling – in order to project transportation electricity demand and greenhouse gas emissions in the United States to 2050 ...
Fox-Penner, Peter   +2 more
core   +2 more sources

Measurement of vehicle particulate emissions. [PDF]

open access: yesEnvironmental Health Perspectives, 1975
A constant volume sampler (CVS) compatible auto exhaust particulate sampling system has been built which samples exhaust isokinetically at constant temperature. This system yields internally consistent results and is capable of frequent and convenient operation.
openaire   +2 more sources

Fortifying casein phosphopeptides and Ca in wheat reduces the As, Cd, and Pb bioavailability based on a mouse model: Calcium and phosphate transporters and gut microbiota

open access: yesSoil & Environmental Health
Reducing the oral bioavailability of metal contaminants including As, Cd, and Pb in foods can protect human health. Studies showed reduced metal bioavailability with elevated Ca and Fe intake; however, the effectiveness of enhancing food Ca and Fe ...
Sheng-Zhi Chen   +6 more
doaj   +1 more source

Development of a vehicle emission inventory with high temporal–spatial resolution based on NRT traffic data and its impact on air pollution in Beijing – Part 1: Development and evaluation of vehicle emission inventory [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
This paper presents a bottom-up methodology based on the local emission factors, complemented with the widely used emission factors of Computer Programme to Calculate Emissions from Road Transport (COPERT) model and near-real-time traffic data on road ...
B. Jing   +8 more
doaj   +1 more source

Comprehensive Analysis of the Pollutant Characteristics of Gasoline Vehicle Emissions under Different Engine, Fuel, and Test Cycles

open access: yesEnergies, 2022
Vehicle exhaust emissions have seriously affected air quality and human health, and understanding the emission characteristics of vehicle pollutants can promote emission reductions.
Zongyan Lv   +7 more
doaj   +1 more source

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