ppb


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ppb

abbr.
parts per billion

ppb

parts per billion.
References in periodicals archive ?
The counsel for federation raised objection over it and argued a constitutional petition is already pending hearing in SC against PPB.
We now have a small but very significant piece of the large puzzle of why children, adolescents and young adults develop PPB and rare ovarian tumors," said Kris Ann Schultz, MD, lead author on the recent report and principal investigator of the International OTST Registry, Children's.
of the apple juice (or cider) samples contained arsenic at levels of 9 ppb or higher.
6 ppb for ethylbenzene, compared with a human drinking water threshold of 700 ppb; 24 ppb for toluene, compared with a threshold level of 1,000 ppb; and 14 ppb for xylenes, compared with a threshold level of 10,000 ppb.
Those that had the lowest levels of iron were from The Netherlands and Ireland (41 ppb and 47 ppb, respectively).
Sensory analysis of the model systems confirmed that directly adding individual pyrazines at less than 20 ppb led to the development of earthy-bell pepper flavor in mild domestic Cheddar cheese.
The actual baseline (or "design value") ozone level in the Philadelphia metro area in 1975 was 199 ppb.
Tierney's group showed that at exposures of about 10 ppb, the fungicidal wood-preservative known as IPB turned off olfaction in coho salmon.
About 10 percent of women with low iodine intake could require treatment if pregnant and if they were exposed to as little as 5 ppb of perchlorate, according to the Environmental Working Group.
Atrazine concentrations seldom exceed 20 ppb for long but are likely to remain low (parts per billion) for extended time periods, especially considering that reported half-lives in fresh water exceed 100 days (de Noyelles et al.
Fourteen samples contained greater than 10,000 ppb Ag, and one of those exceeded the detection limit of 100,000 ppb Ag.
The first thing to understand is that this 15 ppb level was never intended to be a health standard," says Maas.