Publication

High concentration of black carbon in northern Pakistan: Characteristics, source apportionment and emission source regions

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Impact of fuel quality regulation and speed reductions on shipping emissions: Implications for climate and air quality

Athanasios Nenes

Atmospheric emissions of gas and particulate matter from a large ocean-going container vessel were sampled as it slowed and switched from high-sulfur to low-sulfur fuel as it transited into regulated coastal waters of California. Reduction in emission fact ...

2011

Self-entrainment of air on stepped spillways

Michael Pfister

The pseudo-bottom-inception point related to air entrainment is located further upstream on stepped spillways than on smooth spillways, for otherwise identical conditions. Its position is relevant concerning cavitation aspects, flow losses and flow depths. ...

Elsevier2011

Optimal Methodology to Generate Road Traffic Emissions for Air Quality Modeling

Quoc Bang Ho

Growing population, consuming a large amount of energy such as combustion of fossil fuel, increasing pollutant emissions in the atmosphere are the threats to the sustainable development of our planet in general, and of the air quality in particular. Accord ...

EPFL2010

If mitigation of black carbon (BC) particulate matter is accompanied by a decrease in particle number emissions, and thereby by a decrease in global cloud condensation nuclei (CCN) concentrations, a decrease in global cloud radiative forcing (a reverse-gcl ...

2010

Atmospheric composition change - global and regional air quality

Isabelle Bey, Sylvia Generoso

Air quality transcends all scales with in the atmosphere from the local to the global with handovers and feedbacks at each scale interaction. Air quality has manifold effects on health, ecosystems heritage and, climate. In this review the state of scientif ...

2009

Optimal Integration of Renewable Energy in Buildings Using Predictive Control

Tomasz Kaminski

Today’s world faces a large problem which is global warming. Glaciers melting see, and oceans water level rising, and droughts in Africa. According to [1] there are seven main sources of CO2 emissions from fossil fuels combustion: 1. Solid fuels (e.g. coal ...

2009

Multimodel estimates of intercontinental source-receptor relationships for ozone pollution

Songmei Wu, Isabelle Bey

Understanding the surface O-3 response over a "receptor" region to emission changes over a foreign "source" region is key to evaluating the potential gains from an international approach to abate ozone (O-3) pollution. We apply an ensemble of 21 global and ...

2009

Interannual variability in tropospheric ozone and its precursors

Symeon Koumoutsaris

Tropospheric ozone (O3) is a harmful pollutant and an increasingly important green-house gas. Tropospheric O3 distributions are determined by complex and non-linear interactions between photochemistry and transport processes. The first objective of this th ...

EPFL2008

Traffic emission using floating car and sensor data

André-Gilles Dumont, Edward Chung, Emmanuel Bert

Air pollution is an important aspect for transportation, particularly car emission in urban area. The objective of this paper is to evaluate the global emission of a transport network based on probe car and traffic sensor data. This paper used the microsim ...

2007

Atmospheric trace gases and aerosols and climate interact in many ways. A quantitative assessment of the influence of trace gases and aerosols on climate can only be achieved if the interactions and feedbacks among these three major components are accounte ...

EPFL2007