Nitrogen in Soil Helps Clean Air

  • Author: ChemistryViews
  • Published: 24 August 2011
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Science/AAAS
thumbnail image: Nitrogen in Soil Helps Clean Air

Eutrophication — the increase of plant biomass due to addition of artificial or natural fertilizers, such as nitrates and phosphates — harms the environment in many ways. Yet, nitrogen fertilizer may also be positive for the environment as Hang Su and co-workers, Max Plank Institute for Chemistry, Mainz, Germany, show.

They found that nitrogen fertilizer indirectly strengthens the self-cleaning capacity of the atmosphere. Nitrous acid is formed in fertilized soil and released to the atmosphere. The amount released increases with increasing soil acidity. In the air, nitrous acid leads to the formation of hydroxyl radicals which oxidize pollutants, leading to their removal by rain.

Agricultural activities and land-use changes may strongly influence the oxidizing capacity of the atmosphere, an effect that has not previously been taken into account by geoscientists.

Article Views: 2780

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH