Journal ArticleDOI
Evidence of an increasing NO2/NOX emissions ratio from road traffic emissions
TLDR
In this paper, a statistical analysis of roadside concentrations of nitrogen oxides (NOX) and nitrogen dioxide (NO2) in London shows that from 1997 to 2003 there has been a statistically significant downward trend (at the p = 0.004 level) in NOX averaged across a network of 36 sites.About:
This article is published in Atmospheric Environment.The article was published on 2005-08-01. It has received 313 citations till now. The article focuses on the topics: NOx.read more
Citations
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Journal ArticleDOI
Public health benefits of strategies to reduce greenhouse-gas emissions: urban land transport
James Woodcock,Phil Edwards,Cathryn Tonne,Ben Armstrong,Olu Ashiru,David Banister,Sean Beevers,Zaid Chalabi,Zohir Chowdhury,Aaron Cohen,Oscar H. Franco,Andy Haines,Robin Hickman,Graeme Lindsay,Ishaan Mittal,Dinesh Mohan,Geetam Tiwari,Alistair Woodward,Ian Roberts +18 more
TL;DR: Climate change mitigation in transport should benefit public health substantially and policies to increase the acceptability, appeal, and safety of active urban travel, and discourage travel in private motor vehicles would provide larger health benefits than would policies that focus solely on lower-emission motor vehicles.
Journal ArticleDOI
New considerations for PM, Black Carbon and particle number concentration for air quality monitoring across different European cities
Cristina Reche,Cristina Reche,Xavier Querol,Andrés Alastuey,Mar Viana,Jorge Pey,Teresa Moreno,Sergio Rodríguez,Yenny González,R. Fernández-Camacho,J. de la Rosa,Manuel Dall'Osto,André S. H. Prévôt,Christoph Hueglin,Roy M. Harrison,Paul Quincey +15 more
TL;DR: In this paper, the results of the interpretation of the 2009 variability of levels of PM, Black Carbon (BC), aerosol number concentration (N) and a number of gaseous pollu- tants in seven selected urban areas covering road traffic, ur- ban background, urban-industrial, and urban-shipping envi- ronments from southern, central and northern Europe.
Journal ArticleDOI
Aircraft engine exhaust emissions and other airport-related contributions to ambient air pollution: A review
Mauro Masiol,Roy M. Harrison +1 more
TL;DR: This review aims to summarise the state-of-the-art research on aircraft and airport emissions and attempts to synthesise the results of studies that have addressed this issue, to address the future potential of research by highlighting research needs.
Journal ArticleDOI
Transport impacts on atmosphere and climate: Land transport
E. Uherek,Thomas Halenka,Jens Borken-Kleefeld,Yves Balkanski,Terje Koren Berntsen,Carlos Borrego,Michael Gauss,Peter Hoor,Katarzyna Juda-Rezler,Jos Lelieveld,Dimitrios Melas,Kristin Rypdal,Stephan Schmid +12 more
TL;DR: In this article, the authors present an overview of past, present and future emissions from land transport, of their impacts on the atmospheric composition and air quality, on human health and climate change and on options for mitigation.
Journal ArticleDOI
Validation of road vehicle and traffic emission models – A review and meta-analysis
TL;DR: In this article, a meta-analysis of 50 studies dealing with the validation of various types of traffic emission model, including "average speed", "traffic situation", "Traffic variable", "cycle variable", and "modal" models is presented.
References
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Journal ArticleDOI
Techniques of trend analysis for monthly water quality data
TL;DR: The seasonal Kendall test as discussed by the authors is a nonparametric test for trend applicable to data sets with seasonality, missing values, or values reported as "less than" or values below the limit of detection.
Book
Statistical Methods for Environmental Pollution Monitoring
TL;DR: In this paper, the authors proposed three-stage sampling: simple random sampling, two stage sampling and three stage sampling, and two-stage and double sampling, respectively, to estimate the mean and variance from censored data sets.
Journal ArticleDOI
The impact of congestion charging on vehicle emissions in London
Sean Beevers,David C. Carslaw +1 more
TL;DR: In this paper, a comprehensive analysis of the impact using detailed traffic data, combined with the Environmental Research Group's road traffic emissions model, has identified a number of important results, such as a significant reduction in the emissions of NOX and PM10 associated with increases in vehicle speed and that this is as important in reducing emissions as changes in vehicle numbers.
Journal ArticleDOI
Mobile laboratory with rapid response instruments for real-time measurements of urban and regional trace gas and particulate distributions and emission source characteristics.
Charles E. Kolb,Scott C. Herndon,J. Barry McManus,Joanne H. Shorter,Mark S. Zahniser,David D. Nelson,John T. Jayne,Manjula R. Canagaratna,Douglas R. Worsnop +8 more
TL;DR: A mobile laboratory containing innovative tunable infrared laser differential absorption spectroscopy (TILDAS) instruments to measure selected trace gas concentrations at sub parts-per-billion levels and an aerosol mass spectrometer (AMS) to measure size resolved distributions of the nonrefractory chemical components of fine airborne particles as well as selected commercial fast response instruments and position/velocity sensors is described.
Journal ArticleDOI
Estimations of road vehicle primary NO2 exhaust emission fractions using monitoring data in London
David C. Carslaw,Sean Beevers +1 more
TL;DR: In this article, a set of simple chemical equations has been used to explain the differences in NO 2 concentrations between background and roadside site pairs and to estimate the proportion of NO 2 that is likely to be derived from primary NO 2 vehicle emissions and the NO 2 formed through the reaction of nitric oxide (NO) with ozone (O 3 ).
Related Papers (5)
Analysis of the relationship between ambient levels of O3, NO2 and NO as a function of NOx in the UK
Estimations of road vehicle primary NO2 exhaust emission fractions using monitoring data in London
David C. Carslaw,Sean Beevers +1 more