Variation of the NMVOC speciation in the solvent sector and the sensitivity of modelled tropospheric ozone

Non-methane volatile organic compounds (NMVOCs) are detrimental to human health owing to the

Transportafstand van reactief stikstof in Europa verandert over de periode 1990-2009

De uitstoot van SO2, NO en NH3 is niet even snel verminderd. Hierdoor is de atmosferische chemie verandert, waardoor concentraties van reactief stikstof en zwavelcomponenten niet een-op-een met de emissiereducties teruglopen.

Particulate emissions from residential wood combustion in Europe - revised estimates and evaluation

Currently residential wood combustion (RWC) is increasing in Europe because of rising fossil fuel prices but also due to climate change mitigation policies. However, especially in smail-scale applications, RWC may cause high emissions of particutate mafler (PM). Recently we have developed a new high-resolution (7 x 7km) anthropogenic...

Een quick scan voor methaan emissies. Ontwikkeling van een methode om methaan uit diffuse bronnen beter te bepalen

Het broeikasgas methaan komt vrij uit diffuse bronnen zoals stortplaatsen, waterzuiveringsinstalla-ties en de veehouderij. De emissie hiervan wordt met generieke emissiefactoren berekend. Hoe representatief de berekende waarde is, is doorgaans niet bekend. In dit artikel beschrijven we een betaalbare én nauwkeurige methode die de emissie van...

Improving the modeling of road dust levels for Barcelona at urban scale and street level

Road dust emission is an emerging issue in air quality due to the lack of remediation measures in contrast to vehicle exhaust emissions. The evidence of receptor modeling studies allows for quantifying impact on a few receptors, but the high cost of PM chemical speciation data and the questionable representativeness of single monitoring sites,...

HTAP_v2.2: A mosaic of regional and global emission grid maps for 2008 and 2010 to study hemispheric transport of air pollution

The mandate of the Task Force Hemispheric Transport of Air Pollution (TF HTAP) under the Convention on Long-Range Transboundary Air Pollution (CLRTAP) is to improve the scientific understanding of the intercontinental air pollution transport, to quantify impacts on human health, vegetation and climate, to identify emission mitigation options...

Particulate matter, air quality and climate: Lessons learned and future needs

The literature on atmospheric particulate maffer (PM), or atmospheric aerosol, has increased enormously over the last 2 decades and amounts now to some 1500—2000 papers per year in the refereed literature. This is in part due to the enormous advances in measurement technologies, which have allowed for an increasingly accurate understanding of...

Evaluating BC and NOx emission inventories for the Paris region from MEGAPOLI aircraft measurements

High uncertainties affect black carbon (BC) emissions, and, despite its important impact on air pollution and climate, very few BC emissions evaluations are found in the literature. This paper presents a novel approach, based on airborne measurements across the Paris, France, plume, developed in order to evaluate BC and NO<inf>x</inf> emissions...

In situ, satellite measurement and model evidence on the dominant regional contribution to fine particulate matter levels in the Paris megacity

A detailed characterization of air quality in the megacity of Paris (France) during two 1-month intensive campaigns and from additional 1-year observations revealed that about 70 % of the urban background fine particulate matter (PM) is transported on average into the megacity from upwind regions. This dominant influence of regional sources was...

Impact of a future H2 transportation on atmospheric pollution in Europe

Hydrogen (H2) is being explored as a fuel for passenger vehicles; it can be used in fuel cells to power electric motors or burned in internal combustion engines. In order to evaluate the potential influence of a future H2-based road transportation on the regional air quality in Europe, we implemented H2 in the atmospheric transport and chemistry...

Simulating the formation of carbonaceous aerosol in a European Megacity (Paris) during the Megapoli summer and winter campaigns

We use a three-dimensional regional chemical transport model (PMCAMx) with high grid resolution and high-resolution emissions (4 x 4 km2) over the Paris greater area to simulate the formation of carbonaceous aerosol dur-ing a summer (July 2009) and a winter (January/February 2010) period as part of the MEGAPOLI (megacities: emis-sions, urban,...

Modelling the dispersion of particle numbers in five European cities

We present an overview of the modelling of particle number concentrations (PNCs) in five major European cities, namely Helsinki, Oslo, London, Rotterdam and Athens in 2008. Novel emission inventories of particle numbers have been compiled both on urban and European scales. We used atmospheric dispersion modelling for PNCs in the five target...

Critical loads of Cadmium, Lead and Mercury and their exceedances in Europe

Cadmium (Cd), lead (Pb) and mercury (Hg) are known to be transported over relatively long distances from their sources. Deposited metals may accumulate over time in soils and catchments, and then follow varying pathways to endpoints in humans and the environment. Cadmium and lead, that are emitted primarily as particulate matter, and mercury in...