Researchers from the CNRS and the Université Libre de Bruxelles (ULB) have circulated the mapping list of ammonia distribution (NH3) by analyzing quantities taken by satellites between 2008 and 2016. The interconnection IASI crest developed by CNES allowed them to catalog more than 200 ammonia stores, two thirds of them were not previously identified. These sources are particularly areas of intense cattle work and business industry. The team's results are published Nature (5 December).
For the last twelve years, IASI interim boarding three Metop satellites has subsequently been providing global information on scientists on different aspects of air, including ammonia. Ammonia has a particular focus on the fact that it is a breaking into ammonium salt granules that are wearing the quality of the air we are doing; breathe. However, the processes that manage the concentrations of this gas are still not particularly understood, particularly on a local scale.
Using daily data on ammonia levels registered with translators over time; Introducing nearly ten years ago, researchers created a map of ammonia distribution spread worldwide that has the intention of a square kilometer order. By adding the map together with satellite images, they appeared and the production of 241 sources of non-proxy seamless NH3 – 83 linked to intense stock production and 158 to business industry – as well as 178 broader distribution areas.
As well as recording new sources that can not be accessed to the current numbers in terms of allowing them, the survey has confirmed that the levels of previously announced sources of sources have been too high. By monitoring changes in the data over time, the team was also able to improve their associated human activities, such as the start or closure of business enterprises or the extension of infrastructure for intensive animal feed.
These findings suggest that better regulation of the impact of ammonia pollution needs to make a broad review of ammonia emissions, which is much higher than the magazines; praising now