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the safe level for benzine
is 1 ppm
it has been measured at
3.4 ppm
EPA has set 5 ppb as the maximum permissible level of benzene in drinking water. EPA has set a goal of 0 ppb for benzene in drinking water and in water such as rivers and lakes because benzene can cause leukemia. EPA estimates that 10 ppb benzene in drinking water that is consumed regularly or exposure to 0.4 ppb in air over a lifetime could cause a risk of one additional cancer case for every 100,000 exposed persons. EPA recommends 200 ppb as the maximum permissible level of benzene in water for short-term exposures (10 days) for children.
EPA requires that the National Response Center be notified following a discharge or spill into the environment of 10 pounds or more of benzene.
OSHA regulates levels of benzene in the workplace. The maximum allowable amount of benzene in workroom air during an 8-hour workday, 40-hour workweek is 1 ppm. Because benzene can cause cancer, NIOSH recommends that all workers wear special breathing equipment when they are likely to be exposed to benzene at levels exceeding the recommended (8-hour) exposure limit of 0.1 ppm. www.eco-usa.net...
Benzene is a clear, colorless and highly flammable aromatic liquid that evaporates quickly into the air, and can dissolve in water. It is formed from both natural processes and human activities; natural sources of benzene include volcanoes and forest fires.
Benzene is present in crude oil, gasoline and cigarette smoke. It is industrially used as a solvent in paints and other chemicals and products such as dyes, detergents, nylon, plastics, drugs and pesticides. Benzene is widely used in the United States; it ranks in the top twenty chemicals for production volume and makes up about one percent of every gallon of gasoline.
The International Agency for Research on Cancer (IARC) has determined that benzene is a human carcinogen, and can cause various forms of cancer from prolonged exposure. According to the IARC, benzene is often considered "the mother of all carcinogens," as a large number of carcinogens have structures that include benzene rings. Occupational studies of workers exposed to high levels of benzene show association with leukemia cancer; including acute myelogenous leukemia, acute lymphocytic leukemia, and chronic myelogenous leukemia. Benzene-related leukemias have been reported to develop in as short as nine months, and can remain dormant for as long as 25 years after initial exposure.
Even a small amount of benzene exposure can cause temporary nervous system disorders, immune system depression and anemia. Short term affects include skin, eye, and respiratory tract irritation, headache, stomach irritation, drowsiness and dizziness. High levels of exposure can result in a rapid heart rate, excessive bleeding, tremors, vomiting, unconsciousness and death. Benzene can cause harmful effects on bone marrow, and can cause a decrease in red blood cells leading to myelofibrosis and myelodysplastic syndrome.
www.lawinfo.com...
Originally posted by Overtime
I think your concerns are most relevant, but are you sure the safe levels are 5-10 parts per billion or is it 5-10 parts per million? if its per million, then the levels of 1200 per billion aren't fatal (not to minimise the catastrophe). Just trying to understand how bad this is.
Originally posted by Danbones
reply to post by randyvs
...
i just remembered:
IT IS ILLEGALL TO TERRIFY THE PUPLIC!
according to the patriot act
Thats why they won't be telling us the truth
thet'll be their excuse any way
so sad
Originally posted by ArcAngel
Great
More fear mongering
As I recall pompei eruption was awful but did not destroy the earth. This too shall pass. This is not a world ending event, its not to relieve pressure on yellowstone. It's an oil spill that will not even be on the radar in 10 years. Come on people, quit hoping for your end!
Originally posted by ArcAngel
It's an oil spill that will not even be on the radar in 10 years.
Originally posted by ArcAngel
Great
More fear mongering
As I recall pompei eruption was awful but did not destroy the earth. This too shall pass. This is not a world ending event, its not to relieve pressure on yellowstone. It's an oil spill that will not even be on the radar in 10 years. Come on people, quit hoping for your end!