Assertion: seawater's part | /r/HasProperty | ppb
Facets:
Source sentences:
text: Bromide can be found in fresh water supplies in sufficient concentrations to produce (after ozonation) more than 10 parts per billion (ppb) of bromate —
text: The lower standard of 10 parts per billion (ppb) replaced the prior standard of 50 ppb.
text: Iron, 0.06 parts per billion (ppb)
text: It is present in natural seawater at about 0.25 parts per billion (ppb), which is about a thousand times less than the toxic levels often used to kill microorganisms in the treatment of sick marine fish.
text: Lithium is found in trace amount in numerous plants, plankton, and invertebrates, at concentrations of 69 to 5,760 parts per billion (ppb).
text: But the concentrations are so low — averaging between 50 to 60 parts per billion (ppb)