Concept
Smog
Related publications (32)
Characteristics of PM2.5 Episodes Revealed by Semi-Continuous Measurements at the Baltimore Supersite at Ponca St
Highly time-resolved measurements of PM2.5, its major constituents, particle size distributions (9 nm to 20 μ m), CO, NO/NO2, and O3, and meteorological parameters were made from February through November 2002, at the Baltimore Supersite at Ponca St. using ...
2006Atmospheric boundary-layer structure observed during a haze event due to forest-fire smoke
During a haze event in Baltimore, U.S.A. from July 6 to 8, 2002, smoke from forest fires in the Québec region (Canada), degraded air quality and impacted upon local climate, decreasing solar radiation and air temperature. The smoke particles in and above t ...
2005Impact of the 2002 Canadian Forest Fires on Particulate Matter Air Quality in Baltimore City
With increasing evidence of adverse health effects associated with particulate matter (PM), the exposure impact of natural sources, such as forest fires, has substantial public health relevance. In addition to the threat to nearby communities, pollutants r ...
2005Long-Range Transport to Europe : Seasonal Variations and Implications for the European Ozone Budget
We use a chemical transport model (GEOS-CHEM) to quantify the contribution of long-range transported pollution to the European ozone ({O}{3}) budget for the year 1997. The model reproduces the main features observed over Europe for {O}{3}, carbon monoxid ...
2005Gas phase chemistry mechanisms for air quality modeling
During the last few decades, air pollution has become one of the major environmental and public health issue in every important cities over the world. Photochemical pollutants, like ozone which play a central role in today's air pollution problems, are for ...
EPFL2004The influence of the global photochemical composition of the troposphere on European summer smog, Part I: Application of a global to mesoscale model chain
Elevated mixing ratios of ozone in the lower troposphere are a major summer time air pollution issue in Europe. Photochemical in-situ production is the most important source of ozone in the planetary boundary layer and has been studied extensively. However ...
2003Emission and fate assessment of methyl tertiary butyl ether in the Boston area airshed using a simple multimedia box model : Comparison with urban air measurements
Expected urban air concentrations of the gasoline additive methyl tertiary butyl ether (MTBE) were calculated using volatile emissions estimates and screening transport models, and these predictions were compared with Boston, MA, area urban air measurement ...
2003An investigation of ozone and planetary boundary layer dynamics over the complex topography of Grenoble combining measurements and modeling
Hubert van den Bergh, Bertrand Calpini, Valentin Simeonov, Ioan Balin, Olivier Couach, Pablo Roberto Ristori
This paper concerns an evaluation of ozone (O-3) and planetary boundary layer (PBL) dynamics over the complex topography of the Grenoble region through a combination of measurements and mesoscale model (METPHOMOD) predictions for three days, during July 19 ...
Copernicus Publications2003Episode selection for ozone modelling and control strategies analysis on the Swiss Plateau
Hubert van den Bergh, Alain Clappier
An episode selection procedure was developed and applied to select sets of days representing characteristic meteorol. conditions leading to high ozone episodes over the Swiss Plateau. The selection procedure was applied to data extending from Jan. 1991 thr ...
2002Study of a photochemical episode over the Grenoble area using a mesoscale model and intensive measurements
Hubert van den Bergh, Bertrand Calpini, Valentin Simeonov, Alain Clappier, Ioan Balin, Olivier Couach, Pablo Roberto Ristori
The Grenoble metropolitan area located in the French Alps with more than 400 thousand inhabitants suffers from periods of high ozone (O3) concns. in summertime. Grenoble is moreover located in the Y shaped convergence of three deep valleys with surrounding ...
2002