Lead pollution
| Poison. Neurotoxin. Credited with the Fall of Rome. Need we say more? Yes, we do. EPA lists the most common effects of long-term exposure to lead as:
According to the US government standards, lead is about 180000 times as harmful as carbon dioxide (How we know that?). | ||||||||
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| Relative toxicity | 180000 |
| Pollutant unit | pound |

