picocurie


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picocurie

(ˈpiːkəʊˌkjʊərɪ)
n
(Chemistry) a trillionth of a curie, which is a unit of radioactivity
References in periodicals archive ?
When the Curie is used for small activities, the term picoCurie is used--sometimes designated as a micro-micro Curie to note that it is one trillionth of a Curie.
Therefore the willingness to pay was about 35 cents per person per bequerel of reduction (about $13 per person per picocurie).
Two years later, the EPA established 4 picocuries of radon per liter of air (pCi/l) as the "recommended action level." A picocurie is one-trillionth of a curie, a standard measure of radiation.
The 50 picocurie per gram limit comes from a health department-commissioned study by Argonne National Laboratory, which found a landfill worker exposed to TENORM at a rate of 51.6 picocuries per gram could reach the recommended limit of 100 millirems per year.
indoor-radon concentration at 1 picocurie per liter of air.
The only advantage of charcoal testing and testing with the fancy kits some inspectors will offer is that it gives you a quick reading in case the level is found to be above the recommended safe level of 0.4 picocuries. If the testing shows a lower level, this is no assurance that there is not a problem at other times of the year.
The Record of Decision Amendment requires excavation of radiologically impacted material (RIM) greater than 52.9 picocuries per gram generally down to a depth of 12 feet.
In the United States, the Environmental Protection Agency (EPA) sets a maximum contaminant level for tritium at 20,000 picoCuries per liter (pCi/L).
The levels of radon, measured in picocuries per liter of air (pCi/l), were then compared to factors such as cave or sinkhole proximity, elevation, temperature, and air pressure.
The standard units of picocuries per litre (pCi/l) were used for measuring the radioactivity in this study.
The amount of radon in the air is measured in "picocuries per liter of air," or "pCi/l." If your initial test result is between 4.0 and 8.0 pCi/l, you are advised to retest over a longer period of time with high quality methods.
Previously, information provided by the agency recommended that consider taking action on radon when levels reached more than 2,000 picocuries per liter of well water--the strictest guideline in the nation.