Hence gout and stone afflict the human race;
Hence lazy jaundice with her saffron face;
Palsy, with shaking head and tott’ring knees.
And bloated dropsy, the staunch sot’s disease;
Consumption, pale, with keen but hollow eye,
And sharpened feature, shew’d that death was nigh.
The feeble offspring curse their crazy sires,
And, tainted from his birth, the youth expires.
(Description of lead poisoning by an anonymous Roman hermit)
Lead poisoning is nothing new. The Romans knew the direct effects of lead was madness and death, so they reserved such debilitating and backbreaking labor for slaves. They certainly weren’t going to give up the face powders they loved, nor the spermicide, chastity belts, wine preservatives, coins and dishes. The flaw in their theory was the same as the flaw in our theory, that madness and death were the ultimate result of lead poisoning. Nobody was aware of the neurotoxin that suppresses serotonin in people with high lead levels in their blood and creates behavior and intelligence disorders.
In December 1921, Thomas Midgeley began touting this lead compound as the virtual savior of the American automobile industry. This development ended the knocking in engines and opened the door for new, high power internal combustion engines. These engines won World War II and the US dominated the auto industry until the early 70s. Unfortunately, he was also responsible for more deaths and environmental destruction than any other human being in history. Ironically, he died of his own inventions, but I will talk about him more in another post.
Everybody has been pointing me to these articles, and I have had a great time digging through the academic journals and write ups, but there was too much information to narrow into a single post, a single answer. This post will be a very small summation of what I have found.
Lead is one of the most useful metals we have, which makes it economically difficult to eliminate it altogether. As early as the 1850s here in America, doctors were warning against madness and death that comes from lead poisoning. This is what they knew lead poisoning would do:
1. Madness
2. Coma
3. Death
4. Convulsions
5. Abdominal pain
6. Renal failure
Thanks to the studies of Dr. Herbert Needleman, a pediatrician and child psychiatrist at the University of Pittsburgh Medical Center, we now know the effects also include:
1. Suppression of serotonin
2. Impulsive behavior
3. Difficulty with attention span
4. Learning disorders
5. Lower IQ
6. Aggression
Lead poisoning can happen to anyone, but children are the most at risk. Children are putting things in their mouths, have developing brains and a capacity to absorb lead much more quickly. The damage of lead poisoning can’t be reversed, but they can be treated.
Here’s how people get lead poisoning:
1. Breathing dust with lead,
2. Drinking from plumbing that uses lead in the pipes,
3. Working in an area that exposes you to lead dust; ie: welding, jewelry making, building demolition,
4. Ingesting lead based paint.
Here is the part you really want to know. How does this correlate with violent behavior?
There have been multiple studies on the level of lead in youth’s bones and their violent and criminal behavior. Every study came up with the very same result – the higher the level of lead, the higher the level of aggression and violence, and the lower the IQ.
In the 70s, lead was removed from gasoline, lowering the air pollution. Coincidentally, Roe vs. Wade was also in 1973. Violent crime among young people climbed and climbed through the 70s and 80s, and it was predicted the 90s would continue showing violent crime by young people in epic proportions. Contrary to the doomsday warnings of the sociologists – crime dropped, and dropped rapidly. Former Mayor of New York Rudolph Giuliani credited his “get tough” administration. Freakonomics credited abortion for reducing unwanted children. Now economists and sociologists are suggesting the reduction of lead in the environment.
“In 2001, scientists Paul Stretesky and Michael Lynch used federal Environmental Protection Agency data from 1990 that measured lead levels in the air in 3,111 counties across the United States. Comparing the data to the homicide rates for the same counties, Stretesky and Lynch found that the counties with the highest rate of lead-air pollution had four times as many homicides than the counties with the lowest. While Stretesky and Lynch concluded that their study could not make a direct causal link between lead and violence (counties containing or near large cities are more likely to have more lead-air pollution and more homicides anyway), the results supported “recent findings that there is an association between lead exposure and violent behavior.”
”The percentage of children with blood-lead levels greater than or equal to 10 micrograms per deciliter declined from 88 percent to 9 percent. In New York City, before the US lead phaseout began, 30,000 out of 100,000 New York City children tested had elevated lead levels; after the phaseout was complete, it was only 1,500 of 100,000 who had such high levels.”
Of course, socioeconomic variables were also difficult to gauge. The most common people who raised children in urban areas with homes likely to contain lead based paint were single mothers who live in poverty. This repeats common stereotypes about criminal behaviors:
“There are about 19 million children in the U.S. between the
ages of 1 and 5. Of these, 4.9 million (25.6%) have blood lead
levels of 5 mcg/deciliter or higher. Among African-American
children, 46.8% have 5 or more mcg/deciliter. Among Hispanic
children, 27.9% have 5 mcg/deciliter or higher. Among whites,
18.7% have 5 mcg/deciliter or higher. These data were published
in 2003, but they were gathered during the most recent
available survey, 1988-1994.[16,17]“
The good news is this: As time goes on, there will be fewer opportunities to be exposed to lead poisoning.
The bad news is this: Damage caused by lead poisoning is irreversible.
The worst news is this: People have been warning against lead poisoning since the 1800s, and it was never an economically viable choice to focus on prevention. None of this had to happen to begin with.
http://www.organicconsumers.org/school/lead081004.cfm
http://www.precaution.org/lib/covanta_41.pdf
http://www.leadlawsuits.com/index.php?s=699
http://www3.amherst.edu/~jwreyes/papers/LeadBehavior.pdf
http://archpedi.jamanetwork.com/article.aspx?articleid=190628#qundefined
http://www.motherjones.com/environment/2013/01/lead-crime-link-gasoline
http://pic.plover.com/Nevin/Nevin2007.pdf
http://www.epa.gov/history/topics/perspect/lead.html
http://www.motherjones.com/environment/2013/01/lead-crime-link-gasoline