Saccharin was first singled out as a possible carcinogen in 1977 by a Canadian researcher.

Creosote is a possible human carcinogen and has no registered residential uses.

It can cause changes in behavior and is a possible carcinogen.

This group contains possible carcinogens with weaker evidence, at the same level as coffee and automobile exhaust.

The Federal Government has classified atrazine as a possible human carcinogen.

Lead is considered a possible human carcinogen based on evidence from animal studies.

Nickel compounds are possible carcinogens and contact with skin should be avoided.

Two others, benomyl and thiophanate-methyl, are listed as possible human carcinogens.

Some studies have identified it as a possible carcinogen.

An Ames test is the standard method used to detect possible carcinogens.