Question

a cooling tower requires immediate online disinfection and cleaning if species count is greater than: choose an option below 1 cfu/ml 10 cfu/ml 100 cfu/ml 1,000 cfu/ml

Explanation:

Cooling tower water quality guidelines specify that immediate online disinfection and cleaning are required when the microbial (species) count exceeds 100 cfu/ml, as higher counts indicate a risk of biofilm formation, pathogen growth, and reduced cooling efficiency.

Answer:

100 cfu/ml