Protozoa

Cryptosporidium

Cryptosporidium is a microscopic parasite that causes the diarrheal disease cryptosporidiosis. It is resistant to chlorine disinfection and can survive in water for long periods. The parasite is transmitted through the fecal-oral route, often via contaminated drinking water or recreational water.

Health Guideline Level (HGL)

0 ppb

Maximum level that poses minimal health risk based on the latest science

Health Effects

Infection with Cryptosporidium can lead to severe diarrhea, stomach cramps, dehydration, nausea, and vomiting. In immunocompromised individuals, the infection can be life-threatening.

Affected Organs & Systems:

Gastrointestinal System
Immune System

Common Sources

  • Contaminated water sources
  • Animal waste
  • Agricultural runoff

How to Remove It

Water filters certified under the following NSF standards are effective at removing Cryptosporidium:

Health Guideline Level

The HGL represents the maximum level that poses minimal health risk based on the latest scientific research. It's often more protective than federal legal limits.

Contaminant Type

Cryptosporidium is classified as a Protozoa contaminant.

This contaminant primarily affects the Gastrointestinal system, Immune system.

Check Your Water

Find out if Cryptosporidium is in your tap water.

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