Disease-causing organisms in water, such as E. coli, are categorized as which pollutant type?

Disease-causing organisms in water, such as E. coli, are categorized as which pollutant type?

• A. Pathogens
• B. Sediment pollution
• C. Nutrient pollution
• D. Designated water uses

Answer: (A)

Disease-causing organisms in water, such as E. coli, are categorized as pathogens. Pathogens include bacteria, viruses, and parasites that can cause illness when people come into contact with or consume contaminated water. E. coli is commonly used as an indicator of fecal contamination, signaling that other harmful organisms may be present even if the E. coli itself isn’t the direct cause of illness. This differs from sediment pollution, which involves physical particles; nutrient pollution, which centers on excess nutrients like nitrogen and phosphorus that drive algal blooms; and designated water uses, which are regulatory goals for how a water body should be used rather than a pollutant type.

Disease-causing organisms in water, such as E. coli, are categorized as pathogens. Pathogens include bacteria, viruses, and parasites that can cause illness when people come into contact with or consume contaminated water. E. coli is commonly used as an indicator of fecal contamination, signaling that other harmful organisms may be present even if the E. coli itself isn’t the direct cause of illness. This differs from sediment pollution, which involves physical particles; nutrient pollution, which centers on excess nutrients like nitrogen and phosphorus that drive algal blooms; and designated water uses, which are regulatory goals for how a water body should be used rather than a pollutant type.