Monthly Archives: February 2016

The toxic history of lead

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The recent outrage over lead contamination in the water supply of Flint, Mich. reminds us of how much is known about the history of  lead poisoning.

In 1786, Benjamin Franklin wrote a letter about the harmful effects of lead. In describing the problem in distilleries and the printing trades, Franklin noted how resistant people can be when it comes to understanding public health and environmental issues.

You will observe, with concern, how long a useful truth may be known, and exist, before it is generally received and practiced on,” he said.

Although it hardly seems creditable, the useful truth about lead in the form of paint, water pipes, and leaded gasoline is still not practiced.

Lead is the oldest and best known of environmental hazards.For over two millennia, overexposure to lead was known to cause hallucinations and severe mental problems. Continue reading