Toxic Substances Control Act requires the EPA to keep a list of all chemicals made or processed in the US. To date, there are over 86,000 chemicals in this inventory. However, loopholes in the laws for testing these chemicals have allowed thousands of potentially harmful products to enter the environment. Find out why in this newest Tips for Taps article.

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Given the 80,000+ chemicals on the market, it's no surprise that there are many we just don't know much about. Such chemicals, called "emerging contaminants," enter our drinking water in a variety of ways. In this piece, we ask: what are contaminants of emerging concern, what challenges can they present for researchers and regulators, and how you can protect yourself against the potential risks?

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Did you know it took almost 100 years for US health regulations to protect citizens from the dangers of lead paint? Meanwhile, hundreds of new pharmaceuticals, industrial solvents, fertilizers, and other new chemicals enter the US economy (and water supply)...

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