Question:
The presence of Cl. perfringens (perfringens bacteria) in the soil and the lack of E. coli shows:
Author: Exciteful ElkAnswer:
An older or previous pollution
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5 answer(s) in total
Alternative answers:
A recent contamination
Doesn't indicate soil pollution
Indicate water radioactivity
The infestation degree with parasitic elements
Author
Exciteful Elk