Agency for Toxic Substances & Disease Registry Arsenic arsenic carcinogen arsenic CAS ID #: 7440-38-2 Арсен Arsenic Arsenic Agency for Toxic Substances and Disease Registry 1 Arsenic Arsenic אתר ה-CDC ATSDR Tox Portal http://www.atsdr.cdc.gov/substances/toxsubstance.asp?toxid=3 cause cancer Toxicological profile for arsenic ATSDR – Toxic Substances – Arsenic Agency for Toxic Substances and Disease Registry (ATSDR) Arsenic http://www.atsdr.cdc.gov/substances/toxsubstance.asp?toxid=3 Arsenic arsenic Arsenic Arsenic arsenic, known human carcinogen