Humidity, degradation and storage of chems

One friend has some chems stored and put the photos here
http://cogumelos.gobot.com/stored3.jpg
http://cogumelos.gobot.com/2chemssmall.jpg

want to know if some of these chems are degradated seeing the colors. Some of these color are more or less changed than must. Humidity or degradation?
Appreciates any advise about which are very degradated to throw, and what are good condition, and what are with slight humidity but good at all.



any comment would reply here or to email provided in the photos.

 

That shit does NOT look healthy man. I've never seen those chems be anything but white.