Bacteria, viruses, and protozoa fall under which type of contaminant?

Bacteria, viruses, and protozoa are classified as microbiological contaminants because they are living organisms that can pose a risk to human health and safety, especially in drinking water supplies. These microorganisms can cause a variety of waterborne illnesses and infections, making their presence in water sources a significant concern for public health.

Microbiological contaminants are typically characterized by their ability to reproduce and survive in various environments, including water. They can enter water supplies through fecal contamination, which is why monitoring for their presence is crucial in ensuring water quality and safety.

In contrast, radiological contaminants include radioactive materials, chemical contaminants involve harmful substances that can result from industrial processes or natural occurrences, and physical contaminants refer to particles or materials that can affect the quality of water, such as sediments or debris. Understanding these different categories helps in properly identifying and addressing potential hazards in water supply systems.