Which of the following microorganisms is the most commonly used indicator organism for water quality testing?
A) Escherichia coli
B) Salmonella spp.
C) Streptococcus thermophilus
D) Hepatitis A virus
E) Shigella spp.

Question

Quizplus · Accepted Answer

Escherichia coli is commonly used as an indicator organism for water quality testing because its presence indicates potential contamination by fecal matter and the possible presence of pathogenic microorganisms.

Which of the Following Microorganisms Is the Most Commonly Used