I received the below information regarding the health risks to the toxins used by BP which will be soon flowing up the east coast in the current. The information is for your decision about your own health.
You should not eat anything from salt water. Farm raised and fresh water fish are fine. Do not swim in the sea until the concentration of this toxin is known since it is a skin irritant and can be absorbed by contact.
According to the MSDS data, corexit 9500 is highly toxic. Marine life ingests it, which will ultimately kill them off. If the marine life is caught for food, whoever eats that fish, oyster, etc will be ingesting the corexit 9500 and will suffer the effects. Those effects being damage to red blood cells, kidneys, liver, and shut-down of organs (which can kill you).
Update - Oil Spill Dispersants
On May 4, 2010 the Materials Safety Data Sheets for the two dispersants that we had heard were being used on the BP Deepwater Horizon disaster were posted to the official website.
The two products are Corexit 9500 (as previously reported) and also Corexit EC9527A
Corexit 9500 MSDS
Corexit EC9527A MSDS
The toxicity of Corexit EC9527A is quite high, here is an extract from the Corexit EC9527A Materials Safety Data Sheet:
SAFETY DATA SHEET
PRODUCT COREXIT(R) EC9527A
APPLICATION: OIL SPILL DISPERSANT
NFPA 704M/HMIS RATING
HEALTH: 2/ 2 FLAMMABILITY: 1/ 1 INSTABILITY: 0/ 0 OTHER:
0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme
2. COMPOSITION/INFORMATION ON INGREDIENTS
Our hazard evaluation has identified the following chemical substance (s) as hazardous. Consult Section 15 for the nature of the hazard(s).
Hazardous Substance(s) CAS NO % (w/w)
2-Butoxyethanol 111-76-2 30.0- 60.0
Organic sulfonic acid salt Proprietary 10.0- 30.0
Propylene Glycol 57-55-6 1.0- 5.0
3. HAZARDS IDENTIFICATION
Eye and skin irritant. Repeated or excessive exposure to butoxyethanol may cause injury to red blood cells, (hemolysis), kidney or the liver. Harmful by inhalation, in contact with skin and if swallowed.
Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. Wear suitable protective clothing. Keep container tightly closed. Flush affected area with water. Keep away from heat. Keep away from sources of ignition -No smoking.
May evolve oxides of carbon (COx) under fire conditions.
PRIMARY ROUTES OF EXPOSURE:
Can cause moderate irritation. Harmful if absorbed through skin.
May be harmful if swallowed. May cause liver and kidney effects and/ or damage. There may be irritation to the gastro-intestinal tract.
Harmful by inhalation. Repeated or prolonged exposure may irritate the respiratory tract.
SYMPTOMS OF EXPOSURE:
Excessive exposure may cause central nervous system effects, nausea, vomiting, anesthetic or narcotic effects.
Repeated or excessive exposure to butoxyethanol may cause injury to red blood cells (hemolysis), kidney or the liver.
AGGRAVATION OF EXISTING CONDITIONS:
Skin contact may aggravate an existing dermatitis condition.
HUMAN HEALTH HAZARDS -CHRONIC:
Contains ethylene glycol monobutyl ether (butoxyethanol). Prolonged and/or repeated exposure through inhalation or extensive skin contact with EGBE may result in damage to the blood and kidneys.The Unified Command reported that as of May 6, 2010 Modular Aerial Spray System (MASS) aircraft have flown numerous dispersant missions- dispensing the same dispersant chemical being used by BP and the federal responders. These systems are capable of covering up to 250 acres per flight.