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On earth carbon dioxide levels varied from 250 parts per million to 280 ppm over the past 800,000 years, per ice core samples. There is additional decent proxy evidence to indicate CO2 has not exceeded 280 ppm over the past 20 million years.
Before the industrial revolution began in 1700, CO2 was at the 280 ppm maximum. We would expect without human activity CO2 would still be about 280 ppm, as the normal variation was roughly 5 parts per million over the course of a thousand years.
Many scientists believe 350 parts per million might be earth's maximum sustainable level. We are now at 400 parts per million and at present rates will pass 500 parts per million before 2050, less than 40 years from now.
Wiki User
∙ 11y ago
Wiki User
∙ 14y ago35-40 for normal people. someone with copd could live with a level of 60.
Wiki User
∙ 13y agoAdd your answer:
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How does carbon monoxide effect your body?
when carbon monoxide enters the body, it alters the hemoglobins in your red blood cells. hemoglobins are what carry oxygen on your red blood cells throughout the body, and when carbon monoxide comes, it allows fewer oxygen molecules to be absorped into the red blood cells.
How do carbon monoxide enter the body?
Inhaled
Does carbon monoxide compete with oxygen for the same binding site?
Yes. Carbon monoxide combines with haemoglobin to form carboxyhaemoglobin. This prevents the normal combination of oxygen with haemoglobin, thus depriving cells all round the body of the oxygen they need.
How is carbon monoxide removed from the body?
air filters
Do human need carbon monoxide to survive?
The body makes all the carbon monoxide it needs, which isn't much but it's more than none.
Which gas enters the bloodstream through the lungs and binds to hemoglobin and reduces the amount of oxygen that reaches the body's organs and tissues?
Carbon monoxide
How does carbon monoxide effect your body?
when carbon monoxide enters the body, it alters the hemoglobins in your red blood cells. hemoglobins are what carry oxygen on your red blood cells throughout the body, and when carbon monoxide comes, it allows fewer oxygen molecules to be absorped into the red blood cells.
How do carbon monoxide enter the body?
Inhaled
Does carbon monoxide compete with oxygen for the same binding site?
Yes. Carbon monoxide combines with haemoglobin to form carboxyhaemoglobin. This prevents the normal combination of oxygen with haemoglobin, thus depriving cells all round the body of the oxygen they need.
An ingredient in tobacco smoke that seriously limits the body's ability to use oxygen is?
Carbon monoxide seriously limits the body's ability to use oxygen.
What substance interferes with the body's ability to carry oxygen?
The substance that makes it difficult for the blood to carry oxygen throughout the body is carbon monoxide. Carbon monoxide is also poisonous the cells in the body.
How is carbon monoxide removed from the body?
air filters
Do human need carbon monoxide to survive?
The body makes all the carbon monoxide it needs, which isn't much but it's more than none.
What happens in the body during carbon monoxide poisioning?
Carbon monoxide poisoning prevents red blood cells from carrying out their normal function of transporting oxygen throughout the body. Consequently, all the cells of the body will suffer from lack of oxygen, which will prevent them from carrying out their normal metabolic functions and make them effectively shut down. The brain is the most sensitive to lack of oxygen, and within minutes, will suffer unconsciousness and then death, when deprived of oxygen.
What is the average amount of carbon monoxide a human body needs?
700kg
What effects does tar and carbon monoxide have on a smokers body?
its harmful and you will die!
How can you test for carbon monoxide in a car?
Doctors can now test for carbon monoxide levels in your body by; a breath test, a heart rate reader or even a blood test.
