Then avoid it if you are concerned, but I don't know how you would know for sure.Probably should be avoided if a choice is available. I had a peach tree branch and used a reciricating and a chop saw to make chunks.
And, Sodium and Chlorine, both very toxic, are derivitves of table salt.
I did not know that you could use vegitable oil instead of normal bar oil.....guess I never really thought about it either tho.....If they cut on state or federal land, they must use non petroleum oil.
I use vegetable oil in my chainsaw
TJ