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52 datasets found

Keywords: air

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  • Exceedance of critical loads for nitrogen

    Regions and cities, Environment

    Excessive deposition of reactive nitrogen compounds (NO₂, NO₃⁻, HNO₃, NH₃, NH₄⁺) causes eutrophication (over-fertilisation) of sensitive ecosystems, contributes to soil acidific...

  • Ammonia Concentration

    Regions and cities, Environment

    Ammonia can harm plants and animals and contributes to elevated nitrogen deposition. Critical levels for ammonia are established in the framework of the UNECE convention on long...