Looking at the above caption with my name and major may make you wonder: What in the world is environmental health science?
In short, it’s the study of how toxins in the environment affect human health.
Environmental health has been a hot topic in the news all over the world in the past few years.
You might remember the BPA scare from last year, when news surfaced that the chemical bisphenol A, used in the production of baby bottles, had been found to have negative effects on brain development in infants.
Following the 2008 ban on BPA in Canada, an unsuccessful push was made to ban it in the U.S. Although it still is not banned in the U.S., many companies have stopped using the chemical due to consumer complaints.
The question is: Why are we being exposed to these harmful chemicals anyway?
The answer: When it comes to environmental health policy, the U.S. uses the reactionary principle. Following this principle, a chemical is banned only after significant scientific evidence has declared it hazardous. The problem is that significant scientific evidence can hardly ever be found since scientists rarely agree on which chemicals are hazardous.
Industry lobbyists can capitalize on this lack of significant evidence by pointing to the studies that claim their chemical is safe.
Consequently, many hazardous products remain in production until proven guilty, causing millions of Americans to be exposed to harmful chemicals every day.
Chemical bans in the European Union are based on an idea opposite to the reactionary principle: the precautionary principle.
The precautionary principle is exactly what it sounds like: It represents a cautious attitude toward the toxicity of chemicals. As soon as a chemical is suspected of being harmful to humans, it is banned until the chemical manufacturer can prove that it’s safe.
Researchers and organizations in the U.S. have been advocating for our country to make the switch to the precautionary principle. Their intent is to reduce Americans’ exposure to hazardous chemicals.
But the U.S. Chamber of Commerce has issued a statement declaring its opposition to the precautionary principle on the grounds that the principle assumes the worst and results in immediate restrictions.