Zodpovedny redaktor sa zrejme nemal cas venovat "svojmu clanku", 40 rokov je asi od ich zakazu vyroby v USA.
------------------------- PCB—still a problem ... Their production was banned in the United States in 1978, though they are still produced globally and persist in the environment. http://science.sciencemag.org/... ------------------------------
BTW, USA podpisalo Stockholmsku zmluvu o zakaze vyroby PCB a dalsich podobnych latok v r. 2001, ale doteraz ju neratifikovalo. http://chm.pops.int/Countries/...
Používanie PCB
-------------------------
PCB—still a problem ...
Their production was banned in the United States in 1978, though they are still produced globally and persist in the environment.
http://science.sciencemag.org/...
------------------------------
BTW, USA podpisalo Stockholmsku zmluvu o zakaze vyroby PCB a dalsich podobnych latok v r. 2001, ale doteraz ju neratifikovalo.
http://chm.pops.int/Countries/...