Dein Suchergebnis zum Thema: Amazon

Massive amounts of charcoal enter the worlds‘ oceans

https://www.mpg.de/7112434/charcoal_oceans

Wild fires turn millions of hectares of vegetation into charcoal each year. An international team of researchers led by Thorsten Dittgar from the Max Planck Institute for Marine Microbiology in Bremen and Rudolf Jaffé from Florida International University’s Southeast Environmental Research Center in Miami has now shown that this charcoal does not remain in the soil, as previously thought. Instead, it is transported to the sea by rivers and thus enters the carbon cycle. The researchers had analyzed water samples from all over the world. They demonstrated that soluble charcoal accounts for ten percent of the total amount of dissolved organic carbon.
had taken 174 water samples from all over the world, including rivers like the Amazon

The hidden danger of oxygen

https://www.mpg.de/1170854/pollen_allergy

New findings from researchers at the Max Planck Institute for Chemistry and the Paul Scherrer Institute in Switzerland help to explain how toxic and allergy-causing substances in our air are formed. The scientists have for the first time detected long lived reactive oxygen intermediates on the surface of aerosol particles. These forms of oxygen survive here for more than 100 seconds and in that time react with other air pollutants such as nitrogen oxides. Chemically speaking, the dust particles are oxidized and nitrated. This is what makes soot particles more toxic and increases the potential of pollen to cause allergies.
Februar 2011; doi: 10.1038/NCHEM.988 Related Links The amazon rainforest – a cloud