A meeting of the Proposition 65 Carcinogen Identification Committee (CIC) was held on September 21, 2010, at the California Environmental Protection Agency Headquarters Building in Sacramento, California. The Committee considered the listing of 1,3-dichloro-2-propanol (1,3-DCP) and 3-monochloropropane-1,2-diol (3-MCPD) as known to the state cause cancer. The Committee also provided OEHHA with its advice concerning the relative priority of 27 chemicals for possible hazard identification material preparation. Following is a summary of that meeting.
Following a staff presentation, comments from the public and committee discussion, the CIC determined that both 1,3-DCP and 3.MCPD have been clearly shown to cause cancer; and therefore were added to the Proposition 65 chemical list effective October 8, 2010.
Follow these links to the slide presentations made at the meeting by staff of the California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) and members of the public:
1,3-Dichloro-2-propanol (1,3-DCP), David Morry, Ph.D,. OEHHA
3-Monochloropropane-1,2-diol (3-MCPD), Rajpal S. Tomar, Ph.D., OEHHA
1,3-DCP and 3-MCPD, Lois Haighton, CANTOX
SUMMARY OF CHEMICAL PRIORITIZATION DISCUSSION
The CIC recommended that 6 of the 27 chemicals referred to them for advice and consultation be placed in the ‘high’ priority group, 12 chemicals be placed in the ‘medium’ priority group, and the remaining 9 be placed in the ‘low’ priority group (see table below for specific suggestions concerning chemical priority assignments.) Follow this link to the slide presentation made by OEHHA. For more information on the prioritization process for chemicals, please click here.
High |
Medium |
Low |
Atrazine |
Acephate |
Amitraz |
Clomiphene & its salts |
Alpha-methyl styrene (1‑methyl-1-phenylethylene) |
2-Biphenylamine & its salts |
Methylphenidate & its salts |
Budesonide |
4-Chloro-m-phenylenediamine |
Omeprazole & its salts |
C.I. Acid Orange 3 |
Ciprofibrate |
Pantoprazole & its salts |
Decabromodiphenyl ether (DecaBDE; decabromobiphenyl oxide) |
Decalin |
Rabeprozole & its salts |
Furfural |
2,6-Dichloro-p-phenylenediamine |
|
Gentian Violet |
Isoniazid |
|
4-Hydroxymethyl, 4-Methyl, & 4-Hydroxy Benzenediazonium & their salts |
7-Methylbenz[a]anthracene |
|
Malathion |
Phosmet |
|
N-Methyl-N-formylhydrazine |
|
|
Perfluorooctane sulfonate (PFOS) & its salts & transformation & degradation precursors |
|
|
Quinoxaline-1,4-dioxide compounds & Desoxycarbadox |
|
Meeting transcript available here.
