parts per billion

Weights & Measures Science 2 of 2 appearances
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"parts per billion" appearances by year

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All Weights & Measures clues by year

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# Clue Answer As Given Value Round Category Air Date Show
What we Yanks would call a trillion, the Brits would call this billion $500 J WEIGHTS & MEASURES 1998-11-13 #3265
The EPA determines whether drinking water contains more lead than 15 ppb, ppb standing for this parts per billion $200 J WEIGHTS & MEASURES 1997-01-06 #2846
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