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  • Article from 13.11.2023 | Last changed: 08.04.2024

    Reactive nitrogen

    Annual nitrogen inputs into the German environment – sectoral percentages of total inputs 1995-2014

    … promote global warming. Gaseous nitrogen compounds are precursors of ground-level ozone and secondary particulates and, as such, pose a risk to human health. High atmospheric ammonia and ozone concentrations cause widespread damage to sensitive plants in Europe. Nitrogen …

  • Article from 25.05.2021 | Last changed: 25.05.2021

    Ozone

    Ozone Ozone is a colourless and toxic gas, and one of the most important trace gases in …

  • Article from 17.09.2009 | Last changed: 22.07.2020

    Climate and greenhouse effect

    sun and blue sky

    … the atmosphere. All of these substances and gases, including water vapour and ozone, have a special characteristic: They allow relatively unobstructed penetration … the atmosphere. All of these substances and gases, including water vapour and ozone, have a special characteristic: They allow relatively unobstructed penetration …

  • Article from 19.03.2018 | Last changed: 20.03.2018

    Volatile Organic Compounds (VOC)

    Some labeled brown flasks

    … example, wood. VOCs also arise as reaction products, for example, between oxygen, ozone or water and natural substances of content, such as those to be found in wood … example, wood. VOCs also arise as reaction products, for example, between oxygen, ozone or water and natural substances of content, such as those to be found in wood …

  • Article from 19.09.2018 | Last changed: 18.11.2019

    Ozone and open air sport events

    People are jogging

    Ozone and open air sport events Ground-level ozone can have a negative impact on health, especially when exercising outdoors. …

  • Article from 03.02.2022 | Last changed: 12.08.2025

    Global Atmosphere Watch (GAW)

    Logo des Programms GAW und der WMO OMM

    … Weather Service includes e.g. reactive atmospheric trace substances, aerosols, ozone profiles, radiation parameters and precipitation. For details on the … fluoride (SF 6 ), and halogenated climate forcing trace gases Reactive Trace Gases: Ozone (O 3 ), Nitrogen oxides (NO, NO 2 , NO X , NO y ), Peroxy Acetic Nitric …

  • Article from 30.08.2023 | Last changed: 30.08.2023

    Carbon monoxide

    … system. Furthermore, carbon monoxide is involved in the formation of ground-level ozone. Limit value On 1 January 2005 the limit value for carbon monoxide was put … system. Furthermore, carbon monoxide is involved in the formation of ground-level ozone. Limit value On 1 January 2005 the limit value for carbon monoxide was put …

  • Article from 25.05.2021 | Last changed: 25.05.2021

    Nitrogen dioxide

    … In conjunction with hydrocarbons, nitrogen oxides are responsible for summertime ozone production. Furthermore they contribute to the over-fertilisation and … … In conjunction with hydrocarbons, nitrogen oxides are responsible for summertime ozone production. Furthermore they contribute to the over-fertilisation and …

  • Article from 04.04.2024 | Last changed: 10.10.2025

    Statutes and regulations

    paragraphs

    … and CFCs Montreal Protocol The Montreal Protocol on Substances that Deplete the Ozone Layer is the most important international instrument for the protection of the …

  • Landing page from 09.09.2024

    Important Environmental Indicators

    The following overview shows the key environmental indicators of the German Environment Agency. These indicators are particularly relevant for German and international environmental policy. Click on the images to view the indicators.