Some might believe that the use of manufactured chemical substances is tightly and safely regulated. Unfortunately it is not necessarily the case. In many cases we do not know yet if something is toxic (for example hormone-disrupting chemicals). In other cases we think it is safe and later find out that it is not. A famous example is the insecticide DDT that not only affected the environment but turned out to be an endocrine disruptor and likely carcinogen. It is prohibited since the 1970s but still found in our bodies and the environment. In certain cases, the company using the substance knows it is dangerous but conceals the information. The latter seems to be the case of Monsanto and glyphosate.
Sometimes businesses are in fact allowed to use substances that are toxic to us and the environment. One current example is PFOS and PFOA. They are water and stain repellent fluorosurfactants, used in all kinds of products. I found it in my water proofing spray for shoes and bags (that I am consequently handing in as toxic waste). They are legal to use. Today, however, we know that they do not degrade and thus accumulate in the environment: in the air, water and our food. They are commonly found in breast milk. In large enough doses it’s toxic and carcinogenic to us. While we are all exposed to it to some degree, the inhabitants of Swedish Kallinge were unknowingly exposed to large doses in their drinking water. Similarly, inhabitants close to DuPont’s factory in West Virginia were exposed to large doses too and developed all kinds of diseases (and successfully sued the company that was aware that it poisoned the water). Dupont has also contaminated the air around a factory in Holland for many years with a similar substance. Swedish environmental radio show Klotet made a very good reportage about these substances this week (in Swedish).
What can we as individuals do? When the substances are out there (and they travel far, for example to the Arctic) we cannot stop them on our own.
However, we can support the companies that voluntarily limit their use of the legal but proven, or potentially, toxic substances.
We can also avoid items that contribute to this pollution, such as teflon, ski wax, stain and water repellent textiles. If we worry about our drinking water, a charcoal filter absorbs PFAS (charcoal filter made a difference in Kallinge ).
Businesses, on the other hand, can learn from the DuPont lawsuits that concealing information about toxicity and contamination is unethical business practice. Even if the substance is legal, they now have to pay for the contamination and health consequences.