Results 21 to 30 of about 3,341,032 (343)

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

The state of indoor air quality in Pakistan—a review [PDF]

open access: yes, 2010
Background and purpose: In Pakistan, almost 70% of the population lives in rural areas. Ninety-four percent of households in rural areas and 58% in urban areas depend on biomass fuels (wood, dung, and agricultural waste).
A Jawaid   +71 more
core   +1 more source

Insights into Elemental Composition and Sources of Fine and Coarse Particulate Matter in Dense Traffic Areas in Toronto and Vancouver, Canada

open access: yesToxics, 2021
Traffic is a significant pollution source in cities and has caused various health and environmental concerns worldwide. Therefore, an improved understanding of traffic impacts on particle concentrations and their components could help mitigate air ...
Valbona Celo   +2 more
doaj   +1 more source

An Efficient Parameterization for Surface Shortwave 3D Radiative Effects in Large‐Eddy Simulations of Shallow Cumulus Clouds

open access: yesJournal of Advances in Modeling Earth Systems, 2023
Most atmospheric models consider radiative transfer only in the vertical direction (1D), as 3D radiative transfer calculations are too costly. Thereby, horizontal transfer of radiation is omitted, resulting in incorrect surface radiation fields.
Mirjam Tijhuis   +3 more
doaj   +1 more source

Crop Residue Burning in Northeast China and Its Impact on PM2.5 Concentrations in South Korea

open access: yesAtmosphere, 2021
The impact of crop residue burning in northeastern China on South Korean PM2.5 concentrations was assessed via weather conditions, air quality modeling (AQM), and PM2.5 composition data during two cases exceeding 35 µg·m−3 in November 2015.
Jin-Ju Lee   +7 more
doaj   +1 more source

Nighttime air quality under desert conditions [PDF]

open access: yes, 2015
Nighttime concentrations of the gas phase nitrate radical (NO3) were successfully measured during a four week field campaign in an arid urban location, Reno Nevada, using long-path Differential Optical Absorbance Spectrometry (DOAS).
Blake, DR   +7 more
core   +2 more sources

Evaluation of nitrogen oxides (NOx) sources and sinks and ozone production in Colombia and surrounding areas [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
In Colombia, industrialization and a shift towards intensified agriculture have led to increased emissions of air pollutants. However, the baseline state of air quality in Colombia is relatively unknown.
J. G. M. Barten   +5 more
doaj   +1 more source

Investigation of the Effect of Aerosolized TiO2 Nanoparticles on the NO2 Concentrations under UVA Exposure

open access: yesAerosol and Air Quality Research, 2021
Engineered nanomaterials (ENM) are utilized and produced during many engineering processes. However, they may generate airborne nanoparticles during different phases of their life cycles. TiO2, which is known for its photocatalytic properties, especially
Ali Mohamadi Nasrabadi   +5 more
doaj   +1 more source

Road traffic pollution monitoring and modelling tools and the UK national air quality strategy. [PDF]

open access: yes, 2001
This paper provides an assessment of the tools required to fulfil the air quality management role now expected of local authorities within the UK. The use of a range of pollution monitoring tools in assessing air quality is discussed and illustrated with
Bell, M.C., Marsden, G.R.
core   +1 more source

Introducing the urban wind island effect

open access: yesEnvironmental Research Letters, 2018
Wind is a key component of the urban climate due to its relevance for ventilation of air pollution and urban heat, wind nuisance, as well as for urban wind energy engineering.
A M Droste   +2 more
doaj   +1 more source

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