Do those food products with trace amounts pose no significant risk to human health?

I was used to finding trace amounts just about everywhere.

Although trace amounts are generally harmless, they can still lead to problems over time.

Additional rain fell throughout the week, with only a trace amount recorded for September 18.

"So far all the other elements are present, though in trace amounts."

Those are all there, in trace amounts, what we'd expect.

Only a trace amount of anthrax remains in the letter.

Thus, a trace amount of a carcinogen might not force a chemical off the market.

There will be a trace amount of alcohol in the sauce.

Because of their short half-lives, they are found only in trace amounts.