Common Water Contaminants You Want to Avoid
- Sodium: For most people, a little salt in drinking water may change the taste of the water but not be harmful. For a person with high blood pressure or kidney problems, it’s important to avoid higher levels of sodium in drinking water.
- Bacteria: There are many different bacteria that could be found in your water, such as E. coli, Salmonella typhi, Salmonella paratyphi-A and Shigella dysenteriae. Exposure to these bacteria can cause abdominal cramps, diarrhea, fever, vomiting, and intestinal bleeding and possibly renal failure. An immunocompromised person is at the greatest risk.
- PFAS: This is a group of chemicals used to create non-stick cookware, water repellent clothing and much, much more. They have been dubbed “forever chemicals” because they may take hundreds of years to break down. When found in drinking water, they can cause cancer, endocrine disruption, liver and thyroid damage.
- Radon: Radon is a naturally occurring radioactive gas found in many wells across the country. Radon in water can be released while showering or using the water for household tasks. Radon is a significant cause of lung cancer.
- Nitrates and Nitrites: These chemicals are found in fertilizers and animal waste. In drinking water, they reduce the ability of the blood to carry oxygen. For infants, problems caused by nitrates and nitrites can be fatal.
- Heavy Metals: Metals found in drinking water include arsenic, cadmium, chromium, copper, lead and selenium. Consumption of water containing heavy metals can result in cancer, anemia or damage to liver, kidneys or intestines.
- Chloroform: This and several other toxic chemicals can enter drinking water supplies as a result of community water disinfection. They are carcinogenic and can cause harm to fetal growth and development.

