What does PTB stand for?
PTB stands for "persistent toxic bioaccumulation"
How to abbreviate "persistent toxic bioaccumulation"?
"persistent toxic bioaccumulation" can be abbreviated as PTB
What is the meaning of PTB abbreviation?
The meaning of PTB abbreviation is "persistent toxic bioaccumulation"
What does PTB mean?
PTB as abbreviation means "persistent toxic bioaccumulation"
