Results 41 to 50 of about 132,372 (206)

Emission patterns of urban air pollution

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2014
The estimation of air quality and greenhouse emissions at urban centres is based on detailed source inventories, pollution and meteorological monitoring data and an adequate modelling capability. These inventories are normally assembled either in a top-down or bottom-up approach, depending on the available information and the desired spatial and ...
Puliafito, S. Enrique, Allende, David
openaire   +4 more sources

Impact of the COVID-19 Lockdown on Air Quality and Resulting Public Health Benefits in the Mexico City Metropolitan Area

open access: yesFrontiers in Public Health, 2021
Meteorology and long-term trends in air pollutant concentrations may obscure the results from short-term policies implemented to improve air quality. This study presents changes in CO, NO2, O3, SO2, PM10, and PM2.5 based on their anomalies during the ...
Iván Y. Hernández-Paniagua   +7 more
doaj   +1 more source

The air quality impact of cordon and distance based road user charging: an empirical study of Leeds, U.K [PDF]

open access: yes, 2005
Traffic assignment, pollutant emission and dispersion models were applied to a major UK city so as to assess the air quality impacts of five road pricing schemes.
Milne, D.S., Mitchell, G., Namdeo, A.K.
core   +1 more source

Uncovering the characteristics of air pollutants emission in industrial parks and analyzing emission reduction potential: case studies in Henan, China

open access: yesScientific Reports, 2021
Industrial parks contribute greatly to China’s economic development while emitting huge air pollutants. It is necessary to study the characteristics of air pollutant emissions in industrial parks.
Gengyu Gao   +5 more
doaj   +1 more source

Review of measurement and testing problems [PDF]

open access: yes, 1976
Good instrumentation was required to obtain reliable and repeatable baseline data. Problems that were encountered in developing such a total system were: (1) accurate airflow measurement, (2) precise fuel flow measurement, and (3) the instrumentation ...

core   +1 more source

The Failure of Agency-Forcing: The Regulation of Airborne Carcinogens Under Section 112 of the Clean Air Act [PDF]

open access: yes, 1985
Professor Graham analyzes section 112 of the Clean Air Act, a provision intended by Congress to achieve ambitious regulatory ends by constraining agency discretion.
Graham, John D.
core   +2 more sources

Deterioration of Exhaust Emissions in Ageing Gasoline Vehicles Assessed by RDE Testing

open access: yesEnergies
The paper assesses the change in air pollutant emissions from a petrol passenger vehicle with changing mileage. The search for solutions enabling the assessment of the change in air pollutant emissions, considering the phenomenon of vehicle ageing ...
Jacek Pielecha, Piotr Pryciński
doaj   +1 more source

The co-pollutant cost of carbon emissions: an analysis of the US electric power generation sector

open access: yesEnvironmental Research Letters, 2019
Fossil fuel combustion releases carbon dioxide into the atmosphere along with co-pollutants such as sulfur dioxide, nitrogen oxides, and others. These emissions result in environmental externalities primarily in terms of climate and air quality.
Irene C Dedoussi   +6 more
doaj   +1 more source

An Air Pollutant Emission Analysis of Brazilian Electricity Production Projections and Other Countries

open access: yesEnergies, 2019
In the face of the population’s growing awareness about environmental degradation, air pollutant emissions from electricity production become a very relevant issue.
Rafaella de Souza Henriques   +2 more
doaj   +1 more source

CARBOTRAF: A decision Support system for reducing pollutant emissions by adaptive traffic management [PDF]

open access: yes, 2015
Traffic congestion with frequent “stop & go” situations causes substantial pollutant emissions. Black carbon (BC) is a good indicator of combustion-related air pollution and results in negative health effects.
Beckx, C   +12 more
core  

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