Isopren: Forskelle mellem versioner

 

==Eksterne henvisninger==

*[http://www.sciencedaily.com/releases/2009/08/090806141518.htm California Institute of Technology (2009, August 7). Organic Carbon Compounds Emitted By Trees Affect Air Quality. ScienceDaily] Citat: "...In these studies, the research team focused on a chemical called isoprene, which is given off by many [[stedsegrøn|deciduous]] trees. "The king emitters are [[eg|oaks]]," Wennberg says. "And the isoprene they emit is one of the reasons that the [[Smoky Mountains]] appear smoky."..."And isoprene only comes from plants. They make hundreds of millions of tons of this chemical...for reasons that we still do not fully understand."..."