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A comment on State of emergency declared after lead and copper found in St. Croix tap water. Parent comment

Re:State of emergency declared after lead and copper found i... by guenthert on Thursday November 02, 2023 @05:13AM (#38110830)
> Note: 20,000 ppb is 20 mg/L, which is ... yeah that's a pretty high dose of lead.

It's 20μg/L. It's bad (hence the state of emergency), but not so bad that you would actually see the lead with naked eyes.

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Re:State of emergency declared after lead and copper found i... by xyzzy123 on Thursday November 02, 2023 @06:39AM (#38111525)
I did a double take also, the units are a bit confusing... 1 ppb is 1 nanogram per gram but there are 1000 grams in a litre so 1 ppb is 1 microgram per litre. So I still think that approx 20mg/L is the correct figure.
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Re:State of emergency declared after lead and copper found i... by guenthert on Thursday November 02, 2023 @07:21AM (#38111859)
Ouch, yes and I even had my coffee already.
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