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Glossary


Adsorption - The chemical process in which filter media encourage water contaminants to separate from the water molecules and bond to the filter media.

Cryptosporidium - A chlorine-resistant protozoan that makes its way into municipal water facilities. The protozoan can cause severe gastrointestinal illness.

EPA - Environmental Protection Agency. The EPA is the government agency assigned to maintain cleanliness standards and maximum contaminant levels for all municipal water plants in the United States.

FDA - Food and Drug Administration. The FDA is the government agency that ensures standards and quality for all food and drugs produced and marketed in the United States.

Giardia - A chlorine-resistant protozoan that makes its way into municipal water facilities. The protozoan can cause severe gastrointestinal illness.

Hippocratic Sleeve - A simple water filter designed by Hippocrates of ancient Greece. The filter consisted of a cloth sleeve through which water was poured.

NRDC - National Resource Defense Council. The NRDC is a political activists’ group that boasts more than 1 million members. Its goal is to protect the planet’s wildlife and natural resources.

pH - A measure of the general alkalinity or acidity of a substance. pH numbers range from 0-14, with 7 being neutral.

Phthalate - Phthalate is a colorless liquid that has a bitter, disagreeable taste. It is a synthetic substance that is commonly used to make plastics more flexible.

VOCs - Volatile Organic Chemicals. VOCs are synthetic chemicals dissolved in water—such as insecticides or herbicides—which vaporize at low temperatures.

WWF - World Wide Fund for Nature. The WWF is a global organization with several offices throughout the world. Its goal is to protect and preserve environmental resources.

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