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Contact persons: hilde. Contact persons: jan. The impact on human health by atmospheric particles was the recognized driving force for the extension of EMEP framework to include particulate matter. Aerosols also affect the radiative balance and thus contribute to climate change. It was specifically highlighted that PM from long range transport contribute significantly to these effects. It was therefore recommended to also use PM2.

On the other hand, coarse particles may have more visible impacts on respiratory morbidity.

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However, current knowledge does not allow attributing the observed health effects to a particular characteristic of PM, nor precise quantification of the health effects of PM emissions from different sources or of individual PM components. Thus, current risk assessment practices should consider particles of different sizes, from different sources and with different compositions as equally hazardous to health WHO, Both modelling and measurement tools have been used to assess PM concentration level and chemical composition. The EMEP database contains monitoring data on a rather large number of chemical and physical parameters of aerosols, but the sampling sites are in general distributed inhomogeneously.

EMEP aims at establishing and extending monitoring of fine particles and aerosol chemical composition complementary to PM10 measurements. Contact person: svetlana. Contact: emep.

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Contact person: anne-gunn. The chemical transport models developed at Meteorological Synthesizing Centre - West MSC-W are concerned with the regional atmospheric dispersion and deposition of acidifying and eutrophying compounds S, N , ground level ozone O 3 and particulate matter PM 2.

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In , the MSC-W of EMEP began the work on the development of an ozone model of adressing both the problem of short-term episodic ozone and long-term growing season ozone. The model was called in the beginning the Lagrangian Ozone model and is also known as the Lagrangian Photooxidant model. The EMEP Lagrangian model was not explicitly designed to model particulate matter, but it calculated air concentrations of four secondary particles: sulphate, nitrate, ammonium sulphate and ammonium nitrate. In 3-D Eulerian Acid Deposition Model was applied to calculate air concentration and deposition fields for major acidifying and eutrophying pollutants as well as their long-range transport and fluxes across national boundaries.

Source categories include:. Many researchers and research projects use their own source classifications, sometimes based on either the IPCC or the SNAP source categories, but in most cases the source categories listed above will be included. Emission inventories have been developed and still are being developed for two major groups of pollutants:. Typically national inventories provide data summed at the national territory only. In some cases additional information on major industrial stacks 'point sources' is available.

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Stacks are also called release points, because not all emissions come from stacks. Other industrial sources include fugitive emissions, which cannot be attributed to any single release point.

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Some inventories are compiled from sub-national entities such as states and counties in the U. In scientific applications, where higher resolutions are needed, geographical information such as population densities, land use or other data can provide tools to disaggregate the national level emissions to the required resolution, matching the geographical resolution of the model.

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Similarly, national emission inventories provide total emissions in a specific year, based on national statistics. In some model applications higher temporal resolutions are needed, for instance when modelling air quality problems related to road transport. In such cases data on time dependent traffic intensities rush hours, weekends and working days, summer and winter driving patterns, etc. The European Environment Agency updated in the third edition of the inventory guidebook. The quality of an emission inventory depends on its use.

In policy applications, the inventory should comply with all what has been decided under the relevant convention. A well constructed inventory should include enough documentation and other data to allow readers and users to understand the underlying assumptions and to assess its usability in an intended application.

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From Wikipedia, the free encyclopedia. An emission inventory is generally characterized by the following aspects: Why : The types of activities that cause emissions What : The chemical or physical identity of the pollutants included,and the quantity thereof Where : The geographic area covered When : The time period over which emissions are estimated How : The methodology to use Emission inventories are compiled for both scientific applications and for use in policy processes. Social and environmental accountability.

Environment portal Category Commons Organizations. Categories : Air pollution emissions Greenhouse gas inventories. Hidden categories: All articles with unsourced statements Articles with unsourced statements from July Namespaces Article Talk. Views Read Edit View history.