background image
CARCINOGEN POTENCIES
Doses at a Constant Risk
0
5
10
15
20
25
30
35
40
45
50
2
3
4
5
6
7
8
9
10
11
12
CARCINOGEN POTENCY
[Potency Index: (log
10
p + 7)]
N
o
.

o
f

C
a
r
c
i
n
o
g
e
n
s
Threshold of Regulation