Today, BP claims it must keep hiding dispersing its oil catastrophe in the Gulf of Mexico with its subsidiary’s product, Corexit, because the alternative dispersants could be endocrine disruptors. One nasty form of endocrine disruptor is called PAH. In the real world, we’ve known since 2004 that the very same Corexit that BP has been pouring into the gulf for more than a month increases fishes’ PAH uptake from crude oil. In other words, BP’s Corexit increases uptake of crude-oil endocrine disruptors in fish, contradicting BP’s claim.
Why care? Endocrine disruptors are chemicals that mimic the effect of our bodies’ natural hormones. Exposure to endocrine disruptors (EDs) has been shown to increase the risk of cancers of hormone-dependent tissues (including breast cancer), infertility and other reproductive problems, as well as developmental defects and low birth weight.
BP has poured who knows how much Corexit into the Gulf. How has the Corexit altered uptake of endocrine disruptors in shrimp? In humans?
And while we’re asking: Why is the EPA allowing BP to conduct a vast, unregulated experiment on the effect of dumping thousands of gallons of chemicals never tested for long-term toxic effects on humans into the same gulf near where millions of humans live and from which millions of others obtain (or obtained) their seafood?
Who’s in charge here? BP’s negligent, lethal management, or a Secretary of the Interior with a history of winking at toxic extractive industries when he was Senator?
Following the announcement of the right wing rogues’ gallery which would serve as Obama’s cabinet, the appointment of Ken Salazar, a well known shill for the oil and gas industry, elicited comparatively little comment.
Among the few who managed to express their outrage was Kieran Suckling of the Center for Biological Diversity who described Salazar as “a right-of-center Democrat who often favors industry and big agricultural interests in battles over global warming, fuel efficiency and endangered species.” (See also Jeffrey St. Clair’s “Ken Salazar and the Tragedy of the Common Ground” and Obama’s Used Green Team and Phillip Doe’s “The Man in the Hat“.)
In the end, is there any practical difference between BP’s management and Obama’s Salazar?
Ecotoxicol Environ Saf. 2004 Nov;59(3):300-8.
Oil dispersant increases PAH uptake by fish exposed to crude oil
Ramachandran SD, Hodson PV, Khan CW, Lee K.
School of Environmental Studies, Queen’s University, Kingston, Ont., Canada K7L 3N6.
Abstract
The use of oil dispersants is a controversial countermeasure in the effort to minimize the impact of oil spills. The risk of ecological effects will depend on whether oil dispersion increases or decreases the exposure of aquatic species to the toxic components of oil. To evaluate whether fish would be exposed to more polycyclic aromatic hydrocarbon (PAH) in dispersed oil relative to equivalent amounts of the water-accommodated fraction (WAF), measurements were made of CYP1A induction in trout exposed to the dispersant (Corexit 9500), WAFs, and the chemically enhanced WAF (dispersant; CEWAF) of three crude oils. The crude oils comprised the higher viscosity Mesa and Terra Nova and the less viscous Scotian Light. Total petroleum hydrocarbon and PAH concentrations in the test media were determined to relate the observed CYP1A induction in trout to dissolved fractions of the crude oil. CYP1A induction was 6- to 1100-fold higher in CEWAF treatments than in WAF treatments, with Terra Nova having the greatest increase, followed by Mesa and Scotian Light. Mesa had the highest induction potential with the lowest EC50 values for both WAF and CEWAF. The dispersant Corexit was not an inducer and it did not appear to affect the permeability of the gill surface to known inducers such as beta-napthoflavone. These experiments suggest that the use of oil dispersants will increase the exposure of fish to hydrocarbons in crude oil.
PMID: 15388269 [PubMed - indexed for MEDLINE]




23 Comments





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I haven’t been eating fish for awhile due to all the mercury. this is an even better excuse.
But, Of course, most people won’t know, then they’ll blame us for being sick from it
It’s my understanding much of this “dumping” is by air… which is contributing to immediate sickness among people now. I can’t imagine what the long term effects from continuous spraying will be along coastal communities.
Amazing. They won’t use Sea Brat #4 because it could potentially contain an endocrine disruptor, but they’re continuing to use a product that contains a proven endocrine disruptor? WTF?
Hehe, you said Suckling.
The appointment of Salazar elicited plenty of comment from me. The best that supporters could say about him was he was a nice guy though not very smart. The Interior Dept needed a major housecleaning after the scandals of the Bush administration. I knew he wasn’t up to the job. It was just a matter of time.
From Discovery:
But on the other hand, Salazar will never eclipse President Obama’s star. He is the perfect “yessir” underling. I am so old I remember another young president who gathered a group of really smart men around him because it wasn’t about his legacy.
Dr Kirk!! We need your Posts to explain to us Pups just how Toxic all this mess is!! Will there be a marine food chain in the Gulf after all this poison is spewed into it?
Corexit has been illegal in GB for 10 years?!
Chemtrails are plenty toxic, filled with nanoparticles of aluminum and barium that are inhaled right through the lungs into the blood stream.
The colloidal properties of the blood stream take a big hit — compromising the immune system.
Chemtrails insure a population of walking wounded.
Why is the EPA allowing BP to conduct a vast, unregulated experiment on the effect of dumping
thousandsmillions of gallons of chemicals never tested for long-term toxic effects on humans into the same gulf near where millions of humans live and from which millions of others obtain (or obtained) their seafood?Why when the EPA told BP to find another chemical dispersant were they basically allowed to say no?
I may be sorry I asked, but do yo have a credible link to support your assertion?
Nalco/Exxon, the Naperville, IL based supplier of corexit,claims that the ingredients are found in household cleaners, and that they are 1/100 the toxicity of oil. Also, they infer that since EPA has approved the use, it should be safe. Can an EPA that was gutted under Bush be trusted to have done any testing/regulating? Was the testing and approval of chemicals ever an EPA matter?
Start with the following. There is plenty more, if needed.
And, should you want to get technical, I am a chemist.
http://www.alkalizeforhealth.net/Lzetapotential.htm
http://www.hbci.com/~wenonah/info/colloid.htm
I am someone who used to consider myself a “liberal.” Now I don’t have a label for myself. The day I realized that Barack Obama had lied about his wish for a public option in the healthcare reform bill was the day I realized I couldn’t trust politicians or the mainstream media.
With what the government is allowing to happen to the Gulf right now, and possibly a large portion of the ocean, how can you not consider that chemtrails might be a real issue? While I have my doubts about chemtrails, I am more than open to considering them a reality because I no longer trust the government is being honest about anything. Why do so many liberals continue to trust?
Back to the topic at hand, I feel so much despair about the oil catastrophe. News like this article comes out daily yet so much of the public remains blind to it. I am astounded when I log on to my Facebook account and not one of my friends is discussing this. This really could be the end of things. You all know it. We all know it. BP knows it. The government knows it.
The one hope that we have left is allowing the smartest people on the planet access to this oil volcano. I do have optimism that we can fix this problem before it destroys us. The only way: get BP out of there. Get non-corporate scientists in there to figure it out. I have hope that there are smart, non-greedy people left out there. I see more people speaking out about this issue than any other – including our rapidly tanking economy. I think more people are waking up.
This is a time when we must look to people in our lives that may not always agree with us, who may watch Fox news now and then or believe in creationism. We must begin talking with people about this and getting people to care.
Because only if all of us stand up and tell this government what we want will they listen. And about this oil catastrophe: they must listen and they must do something because we really, seriously do not know and do not seem to be willing to face the consequences of this greed-driven mistake.
The ‘CYP1A induction’ mentioned in the article refers to carcinogenicity. Many PAHs are carcinogenic. And speaking of which, the VOCs which have been at extremely elevated levels in the spill regions, and on shore, are high in Benzene, but nobody seems to be talking about that.
Thanks a bunch, Mr. Svanberg (from “BP’s Svanberg breaks
silence on oil spill“):
I share your feelings. I stopped trusting Obama when he continued the Bush policies on torture etc.
I agree only when a large percentage of the public make demands will things begin to change. A problems in reference to the environment and climate change is, to put it as respectfully as possible, most people really have never been taught science or a cohesive description of how biologic systems and the planet work. Not exclusively but a large part of these deficits in education, formal and in public domain, are the direct result of the oil industry spending billions to raise questions as to the validity of science as well as introducing bad science.
What are the animal or fish with rapid metabolisms and short lifespans that should show us how this might effect us?
The introduction of crude oil, then chemical agent/dispersant is a direct assault on the food chain of America. Putting aside the obvious effect on the Gulf, what the hell carries vast qualities of tropical moisture into the northern latitudes providing ample H2O to replenish often overtaxed reservoirs and agricultural needs? Where do these storms originate? This is really dumb! Like “Pissing in your Wheaties, then eating them!” Better yet…. Life Cereal, “Give it to Mike…….. He Likes It!!!!!”
And what gets released into the air in the “prescribed burns”, and talk of more burns to try to burn up what has already accumulated/coated/coagulated some of the marsh vegetation? It’s madness – run by a complete Ship of Fools.
Remember when that English farm official fed his kids mad cow meat to show it was safe before England decided to kill and burn all its cows who might have been effected?
I think history might repeat. If people won’t buy Gulf Fish the fishermen stay unemployed. Nobody will buy unless maybe Obama and the Dem/GOP Senate and House were to go on a New Orleans fish diet for a month.
Good point these chemicals have been found all over the world.
In addition to renouncing the use of the word “liberal” to describe yourself, you should also consider renouncing the dishonest terms that accompany that political philosophy.
In particular, think a bit about the term “mainstream media.” Words matter. Why not use accurate terminology rather than a propaganda slogan. My preference is to describe the purveyors of the dog and pony show that passes for public discourse as the “corporate controlled communications media” or CCCM for short.