Timeline for Did banning lead additives in petrol (gasoline) make a large contribution to lowering lead levels in people's blood?
Current License: CC BY-SA 3.0
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| Feb 28, 2013 at 14:44 | comment | added | user11522 | @Avi, when there is a strong correlation between exposure to a substance and levels of that substance in the body, it seems pretty safe to assume causation. The only real question is whether it could be caused by concurrent reduction in other types of lead exposure. The U.S. study attempts to control for that by looking at subgroups, and the large number of studies in different locations also speaks against it being other factors. | |
| Feb 26, 2013 at 0:24 | history | edited | Mark | CC BY-SA 3.0 |
added 3328 characters in body
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| Feb 26, 2013 at 0:13 | comment | added | Publius | Also, I think the OP was asking for a causal connection, not a correlation. | |
| Feb 25, 2013 at 7:41 | comment | added | Suma | Can you include quotes from the linked source for better readability and to prevent link rot? | |
| Feb 25, 2013 at 0:40 | history | answered | Mark | CC BY-SA 3.0 |