Results 1 to 10 of about 4,021,164 (355)

Regulating light-duty vehicle emissions: an overview of US, EU, China and Brazil programs and its effect on air quality. [PDF]

open access: yesClean Technol Environ Policy, 2022
This paper reviews the progress and effectiveness of Programs to Control Vehicle Emissions (PCVEs), comparing the experiences in the United States (US), European Union (EU), China, and Brazil.
Ribeiro CB, Rodella FHC, Hoinaski L.
europepmc   +2 more sources

Gross polluters and vehicle emissions reduction [PDF]

open access: yesNature Sustainability, 2022
Version to be published in Nature Sustainability.
Matteo Böhm   +2 more
openaire   +5 more sources

Vehicle emissions in a middle-sized city of China: Current status and future trends

open access: yesEnvironment International, 2020
Vehicle emissions are regarded as an important contributor to urban air pollution in China and most previous studies focused on megacities. However, the vehicle pollution in middle-sized cities becomes more severe due to the increasing vehicle population
Shida Sun   +10 more
doaj   +2 more sources

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   +2 more sources

Light-absorbing organic carbon from prescribed and laboratory biomass burning and gasoline vehicle emissions. [PDF]

open access: yesSci Rep, 2017
Light-absorbing organic carbon (OC), also termed brown carbon (BrC), from laboratory-based biomass burning (BB) has been studied intensively to understand the contribution of BB to radiative forcing.
Xie M, Hays MD, Holder AL.
europepmc   +2 more sources

Cascading marginal emissions signals for green charging with growing electric vehicle adoption [PDF]

open access: yesNature Communications
Shifting electric vehicle charging to use cleaner electricity can reduce carbon dioxide emissions. Grid emissions factors can inform when to shift demand, but key assumptions behind existing emissions factor methods fail for today’s grids and electric ...
Sonia Martin   +2 more
doaj   +2 more sources

Heavy-duty vehicle emission characteristics based on the remote-monitoring three-bin moving-average window method [PDF]

open access: yesE3S Web of Conferences, 2023
A three-bin moving average window (3B-MAW) model was proposed and compared with the work-based window method (WB-WM) to investigate the on-road emission characteristics of heavy-duty vehicles. The invalid data of remote monitoring were mainly composed of
Guo Dongdong   +8 more
doaj   +1 more source

Mechanisms of a Cyclobutane-Fused Lactone Hydrolysis in Alkaline and Acidic Conditions

open access: yesMolecules, 2021
Searching for functional polyesters with stability and degradability is important due to their potential applications in biomedical supplies, biomass fuel, and environmental protection.
Zhangxia Wang, Haibo Ma
doaj   +1 more source

Controllable Introduction of Surface Defects on CH3NH3PbI3 Perovskite

open access: yesNanomaterials, 2022
One of the unique characteristics of semiconductors is the strong dependence of their properties on crystal defects and doping. However, due to the species diversity and low density, it is very difficult to control the type and concentration of the ...
Sushu Wan   +3 more
doaj   +1 more source

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