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modular GIS-integrated system for Air Quality modeling
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Noise Calculation with
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Lasat in ArcGIS
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Titel

 

  1. 'Scale Effects in Air Quality Modelling and Assessment' - Our presentation al ASAAQ conference in Strasbourg, France ...

    IVU Umwelt has contributed to the programme of the International conference on Atmospheric Sciences and Application to Air Quality (ASAAQ) in Strasbourg with the presentation:

    • Pfäfflin, F.; Stern, R.; Diegmann, V.; Nordmann, S.: Scale Effects in Air Quality Modelling and Assessment.

    The 14th ASAAQ took place in Strasbourg, France on 29 - 31 May 2017, and fostered scientific discussion and exchange of information on the latest research and practical applications of atmospheric science to air quality issues.
    More information on 14th ASAAQ

  2. HBEFA Version 3.3 available - Update IMMISem/luft Version 7 in process ...

    Version 3.3 of the Handbook of Emission Factors for Road Transport (HBEFA) is available.

    We are currently analyzing the new approaches and data and will integrate them in our products. As soon as the new version 7.0 of IMMISem/luft is available, our clients will be informed.

    HBEFA 3.3 is a "quick update" of HBEFA 3.2 and is focusing on the "hot" NOX-emission of diesel passenger cars. The other parts of HBEFA 3.2 remain unchanged.

    More information on HBEFA 3.3

  3. Photolysis frequencies for calculating pollutant concentrations in the troposphere - New standard published by VDI, the Association of German Engineers ...

    Available since April 2017:

    VDI 3783 Part 18: Environmental meteorology - Photolysis frequencies for calculating pollutant concentrations in the troposphere

    An employee of IVU Umwelt contributed to the standard as a member of the respective working group.

    The transformation of trace gases in the atmosphere is determined by radical chain reactions initiated by photolysis processes. More detailed assessment and prediction of air quality, therefore, require knowledge of photolysis frequencies. This standard provides photolysis frequencies for tropospheric conditions. To this end, spectral actinic photon flux densities were calculated for a large number of meteorological situations so as to cover typical conditions for Central Europe, with 200 m above sea level taken as the average altitude. The output of the calculation is done for the altitudes 0 m and 1000 m above ground.

    The standard has been developed and published by the ‘VDI/DIN-Commission on Air Pollution Prevention (KRdL) - Standards Committee'. VDI, the Association of German Engineers, is a financially independent and politically unaffiliated, non-profit organization of engineers as well as academics in other disciplines, especially in information science, the natural sciences and mathematics.

    More information on VDI 3783 Part 18

  4. Reaction mechanism for the determination of the nitrogen dioxide concentration - New standard published by VDI, the Association of German Engineers ...

    Available since April 2017:

    VDI 3783 Part 19: Environmental meteorology - Reaction mechanism for the determination of the nitrogen dioxide concentration

    An employee of IVU Umwelt contributed to the standard as a member of the respective working group.

    This standard describes an extended reaction system which accounts for the chemistry of nitrogen oxides with sufficient accuracy, in order to allow a quantitative immission forecast as part of a chemistry and transport model. It is suitable, for example, for evaluating procedures for reducing nitrogen oxide pollutions.

    The standard has been developed and published by the ‘VDI/DIN-Commission on Air Pollution Prevention (KRdL) - Standards Committee'. VDI, the Association of German Engineers, is a financially independent and politically unaffiliated, non-profit organization of engineers as well as academics in other disciplines, especially in information science, the natural sciences and mathematics.

    More information on VDI 3783 Part 19 (in German)

     

  5. Quantification of population-weighted PM10 exposure related to road traffic for the model region Berlin-Brandenburg - IVU Umwelt’s report published by the German Federal Environment Agency ...

     IVU Umwelt compiled the report 'Quantification of population-weighted PM10 exposure related to road traffic for the model region Berlin-Brandenburg', that has now been published by the German Federal Environment Agency (Umweltbundesamt, UBA).

    The report describes the implementation of methods to account for urban structures and, particularly, local traffic loads in the PM10 exposure assessment in a pilot study. For the German Federal States Berlin and Brandenburg, three different methods to refine the exposure assessment have been applied and the results were compared to existing data from modelling within air quality planning in high spatial resolutions.

    Simple methods using high resolution emission inventories may lead to 'visual' improvements with respect to finer structures. However, as they cannot account for the transport of the substances, they are clearly inferior to dispersion modelling of urban background concentrations in high spatial resolution. Screening approaches, which are well-used in air quality planning, are a very good basis to account for high concentrations caused by traffic. The method of the segment-based exposure as-sessment (SBE) presented here, is an easy-to-use approach to estimate exposure in hot spots based on gridded population data available for the entire country.

    Results show that notably increased spatial resolution of concentration fields in urban areas leads to a strong shift of the number of inhabitants towards higher concentration levels. Additionally, including local traffic increments in the assessment provides a means to quantify the fraction of the population affected by high concentrations that do not occur if the assessment is based on background con-centrations only.

    Download (in German)

  6. Modelling air pollutant concentration levels ...

    An abstract of IVU Umwelt on 'Modelling air pollutant concentration levels', providing solutions to air quality challenges, has been published in the journal International Transportation, Volume 68, Issue Special Edition 1: Smarter on the move - Green transport and digital mobility.

    Download 'Modelling air pollutant concentration levels'

  7. Air Quality Plan for Berlin 2011-2017 published in English ...

    The current Air Quality Plan for Berlin 2011-2017 has been published in English. It is based, inter alia, on the report ‘Update of the Air Quality Plan for Berlin 2009-2020', compiled by IVU Umwelt.

    This report contains, e. g., a detailed assessment of the air quality in Berlin's major road network for the base year 2009 and trend forecasts for 2015 and 2020. Five sets of measures were analysed with regard to their potential to reduce violations of limit values.

    Download Air Quality Plan for Berlin 2011-2017

  8. German Partnership for Sustainable Mobility ...

    IVU Umwelt is a friend of the "German Partnership for Sustainable Mobility" (GPSM). GPSM is serving as a guide for sustainable mobility and green logistics solutions and knowledge from Germany. As a platform for exchanging knowledge, expertise and experiences, GPSM supports the transformation towards sustainability in mobility and logistics in developing and emerging countries.

    In two brochures, IVU Umwelt's portofolio is presented:

    "Sustainable Mobility - Made in Germany" stands for sustainable, proven, resource efficient, innovative, trustworthy and flexible solutions for all domains of mobility and logistics services. The network GPSM, initiated by German Federal Government, is supported by German Society for International Cooperation (GIZ) on behalf of Federal Ministry for Economic Cooperation and Development (BMZ) and Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety (BMUB).

    More information on GPSM

  9. Fine Particles - A Strategy Paper ...

    The German committee 'Fine Particles' has published the Strategy Paper 'Fine Particles' in English with the topics source-specific aspects of fine particles, effect-related metrics, as well as climate, weather and the transport of fine particles.

    The joint committee 'Fine Particles' represents a body of experts for chemical, chemical-technological and health aspects of fine particles in the environment and is involved in the scientific evaluation of the formation, occurrence and impact of aerosols/particulate matter in the environment and the pertinent regulations. The working party is an initiative of ProcessNet, German Chemical Society and Commission on Air Pollution Prevention (KRdL) of VDI and DIN.

    Download Strategy Paper Fine Particles 2014

    Download Statuspapier Feinstaub (in German)

  10. Inventory and effectiveness of measures to improve air quality - IVU Umwelt’s report published in English as UBA-Texte 5/2015 ...

    IVU Umwelt compiled the report 'Inventory and effectiveness of measures to improve air quality', that has now been published by the German Federal Environment Agency (Umweltbundesamt, UBA).

    The report contains a description and analysis of 242 air quality plans (AQPs) published in Germany up to 30.11.2012. These plans offer an extensive overview of the current situation in Germany regarding air quality, different methodologies of assessment and proposed measures to improve air quality.

    A detailed schema for classifying the measures has been used to register and analyse all plans, which contain 2588 measures. To ensure comparability, the measures were further classified into a set of 130 standardised measures, representing all measures in German AQPs.

    As plans and measures have been developed and implemented in Germany over a longer period of time, the available evaluation studies carried out after the implementation of the respective measures have been surveyed.

    Additionally, the theoretical reduction potentials for two types of measures concerning road traffic were analysed and, for low emission zones (LEZs), compared with published evaluations. The feasibility and complexity of assessing the isolated effect of a measure is discussed using LEZs as an example.

    Finally, an approach of the EU-Project APPRAISAL for consolidating and assessing AQPs has been applied to eleven German AQPs.

    Download (in English)

  11. Air Quality Plans with IMMIS ...

    The software system IMMIS, a comprehensive set of tools to access traffic induced air pollution, has been and is used to develop many Air Quality Plans, Clean Air Plans and Action Plans in Germany.

    Selected cities, where IMMIS has been used for the development of more than 100 plans, are listed in a table.

    Download tablezum Archiv hier klicken

    More about IMMIS zum Archiv hier klicken

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