If monitoring shows the parent chemical has vanished, what potential issue might still present a toxicological concern?

Answer

Breakdown products, or metabolites, might still have toxicological significance.

Even after the original parent compound breaks down, it can leave behind metabolites that may still possess toxicological significance or persistence that the microbial community has not yet fully processed.

If monitoring shows the parent chemical has vanished, what potential issue might still present a toxicological concern?
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