Immissions

Air Quality on the Test Stand

We are your immissions control partner. Our environmental protection experts support companies and regulatory authorities with a full range of services from a single source. We measure and evaluate air pollution caused by smoke, soot, and particulate matter, as well as substances that emit objectionable odors. Do you want to improve the air quality in your surroundings? Sustainably? We can tell you which immission control measures help you achieve the best results. Choose the specialists with expertise in all aspects of air pollution control.

Benefits at a Glance

With the support of TÜV Rheinland’s immission control experts, you can:

  • Take advantage of state-of-the-art technology for measurements and expert assessments
  • Generate immission forecasts for your regulatory permit
  • Ensure compliance with the statutory requirements of immissions control regulations (Bundes-Immissionsschutzgesetz (BImSchG))
  • Take advantage of our expertise as an authorized measurement agency
    (in compliance with §26 of the 28th BImSchG)

Overview of Our Services

  • Measure and monitor substances than can affect the environment and odors in ambient air, such as smoke, soot, particulate matter, gases, aerosols, and vapors
  • Evaluate use of portable and stationary measurement installations
  • Determine and evaluate air pollution in connection with processes for planning and modifying plants, such as immission predictions and dispersion models
  • Assess air quality in relation to the emission sources
  • Determine meteorological data for calculating pollutant dispersion conditions in conjunction
    with forecasts
  • Perform source analyses and prepare statements in complaint cases

Immission Predictions Using Atmospheric Dispersion Modeling

Immission measurements record the existing immission at specific locations. With a simulation using atmospheric dispersion modeling calculations, we can determine the immission parameters throughout an entire area. We can also produce immission forecasts to predict the effects of a proposed plant and compare the effects of different design alternatives.

Our Forecasting Services

  • Chimney height calculation in compliance with technical air quality control regulations (Technische Anleitung zur Reinhaltung der Luft (TA Luft)) for pollutant immissions and odor immission guidelines (Geruchsimmissions-Richtlinie (GIRL)) for odor sources
  • Dispersion modeling as specified by technical air quality control regulations (TA Luft) for gaseous air pollutants, atmospheric particulate matter, germs, and spores
  • Nitrogen deposition calculations as specified by EU Directive 92/43/EEC for certain flora and fauna habitats (FFH)
  • Dispersion modeling in accordance with odor immission guidelines (GIRL) – and odor immission predictions
  • Micro-scale immission predictions for air pollution caused by motor vehicles within building structures such as service stations and parking garages
  • Dispersion modeling in complex terrain
  • Dispersion modeling in complex building structures
  • Performance of source analyses
  • Statements in complaint cases

Immissions and Immission Concentrations

The term “immission” refers to the process where air pollutants are transmitted to and have an influence on people, animals, plants, and material goods. Concentrations of air pollutants influencing objects are known as “immission concentrations.” Air quality must be monitored to protect the population and the environment – both inhabitants and structures – from the harmful effects of air pollution. Threshold and guideline values have been established to assess air quality. Compliance with these values can be verified by means of immission measurements.