Unit of measurement based on number of particles.
Synonyms
Examples for "ppb "
Examples for "ppb "
1 In July, a test showed Newark water lead levels at 55 ppb .
2 It is also keeping the exiting annual average standard of 53 ppb .
3 But he chose the 10 ppb dose for a very human reason.
4 At one point, tests in Flint revealed lead levels at over 100 ppb .
5 The province's current limit is 10 ppb - twice as high as federal guidelines.
1 Able to smell explosive traces as fine as one part per billion .
2 The state's limit is one part per billion , below the federal government's limit of five parts per billion.
3 Prof Wall said there was a time when science could detect chemicals and taint in milk at one part per billion .
4 There is methane on Mars too, but the measly amount, just one part per billion , may come from reactions in rocks.
5 On Mars, the amount of methane floating around is measly: about one part per billion , with bursts reaching 10 times that amount.
1 The EPA says a concentration of five parts per billion is acceptable.
2 Note that micrograms per liter is the same thing as parts per billion .
3 My tap water sample was very close to five parts per billion TCE.
4 The spectrometers typically detect chemicals in the "low parts per billion " range.
5 The highest test results were at 11 parts per billion (ppb).
6 The European Union limits are 60 parts per billion .
7 Its mass is uncertain to 20 parts per billion .
8 But Formisano measured formaldehyde at 130 parts per billion .
9 The Ministry of Health (MOH) guideline for safe drinking water is 2 parts per billion .
10 In comparison, Earth's atmosphere contains roughly 1,700 parts per billion of methane.
11 The federal level as mandated by the Environmental Protection Agency (EPA) is 15 parts per billion .
12 The state's limit is one part per billion, below the federal government's limit of five parts per billion .
13 Canada's are 63 parts per billion .
14 The US standards, which allow up to 75 parts per billion , are a relic of the George Bush administration.
15 In the tainted bottles of Coke, these residues were present at levels of between five and seventeen parts per billion .
16 Of those, eight sites had lead readings above 100 parts per billion , according to a statement from Governor Rick Snyder's office.
Other examples for "parts per billion"
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Translations for parts per billion