Coliforms in a Water Sample Indicate ________ Contamination

Question

Coliforms in a water sample indicate ________ contamination.
A) fecal
B) industrial or chemical
C) arthropod
D) All of the answers are correct.

Accepted Answer

Coliforms are a group of bacteria found in feces and the intestinal tracts of warm-blooded animals. The presence of coliforms in a water sample is an indicator of fecal contamination, which can lead to the transmission of diseases such as cholera, typhoid, and dysentery. Industrial or chemical contamination may also be present in water samples, but coliforms specifically point to fecal contamination. Arthropod contamination is not a relevant option.