2 ms·
> 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
by guenthert 3y ago
> 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.
- xyzzy123 3y agoI did a double take also, the unit conversion is a bit confusing... 1 ppb is 1 nanogram per gram but there are 1000 grams in a litre so 1 ppb is actually 1 microgram per litre. So I still think that approx 20mg/L is the correct figure.
- guenthert 3y agoOuch, yes and I even had my coffee already.