+1 This is 100% true. I have had coins in albums for over 25 years and they look just like they did the day I put them in there...because I properly store the albums.
Trust me, it's not the album, it's the drawer. Wood, and especially particle board or mdf are bad storage places for coins. Like I mentioned before, I've had coins in the same albums, Dansco and the old blue Whitmans for as long as I've collected (over 30 years), some of the Whitmans were my parents before I was alive, and no toning is evident on any of them. Maybe it helps I live where the average relative humidity is below 4% so little to no chemical leeching occurs with the album materials.
If you don't have a better place to keep them, at least place the albums inside ziplock bags or plastic food containers. They might not keep all the contaminants out, but it'll be better than nothing.
my statehood quarters look dull and grey. the sac dollars toned up alittle. the proofs on some have a strange dark yellow almost orange toning on the reverse. my presidential dollars have toned up darker orangy and in my opinion not in a good way. I will take pics of these tomorrow or the next day. I am guessing the only safe way to store coins in the the old 2x2's no damage to those on 80% of my coin collection. with the exception of my 5 slabbed TPG coins.
Is this an older album (more than20 years old) or a newer album? I believe the newer albums have inert materials that would not tone the coins in such a dramatic way. Remember, the environment in which the album is stored is very important.
Wow, that (and some of the others) looks like there was condensing moisture with contaminants. It's like they were stored in a high-humidity, high-temperature environment for a long time, then put someplace cold.
The odd part is the collection contains a number of albums and this is the only one like this. Some have toning but nothing like this. Sadly though most of the toning is not desirable. I believe the dimes were an exception as far a desirable toning.
Then you need to do a whole lot more studying before collecting. They are PVC free, as any food quality material must be, and most freezer bags are moisture resistant. If they're good enough, along with Tupperware containers, for the Smithsonian, Louvre and dozens of other world-class museums to use in archives, they're good enough for any of us.