# level

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Related to LOAEL: NOAEL, Reference dose

## level

[lev´el]
relative position, rank, or concentration.
l's of care the six divisions of the health care system: preventive care, primary care, secondary or acute care, tertiary care, restorative care, and continuing care.
background level the usual intensity of a chemical or other stimulus in the environment.
confidence level the probability that a confidence interval does not contain the population parameter.
l's of consciousness see levels of consciousness.
lowest observed adverse effect level (LOAEL) (lowest observed effect level (LOEL)) in studies of the toxicity of chemicals, the lowest dosage level at which chronic exposure to the substance shows adverse effects; usually calculated for laboratory animals.
no observed adverse effect level (NOAEL) (no observed effect level (NOEL)) in studies of the toxicity of chemicals, the highest dosage level at which chronic exposure to the substance shows no adverse effects; usually calculated for laboratory animals.
level of significance a statistical measure that serves as the cutoff point used to determine whether a null hypothesis is retained or rejected; the probability of incorrectly rejecting the null hypothesis (see Type I error).
sterility assurance level (SAL) the probability that a process makes something sterile (see sterilization). An SAL of 10−6 is the recommended probability of survival for organisms on a sterilized device. This level means that there is less than or equal to one chance in a million that an item remains contaminated or nonsterile.

## lev·el

(lev'ĕl),
1. Any rank, position, or status in a graded scale of values.
2. A test for determining such rank or position.

## level

A relative position; reference point; a specified amount of a thing

## lev·el

(lev'ĕl)
Any rank, position, or status in a graded scale of values.

## lev·el

(lev'ĕl)
Any rank, position, or status in a graded scale of values.

Q. Are there are different kind of levels of alcoholism?

A. If you are talking about the type of alcoholic drink,YES,they have different levels of alcohol in them,read the bottle,it will give you percent#--the more alcohol in a drink, the faster you will get drunk,and the worst your hangover will be-----mrfoot56

Q. Can you help me to know what the safe level of drinking is? I am a crane operator who gets more tired when returning home. So I consume some amount of liquor daily by having my restriction to not go beyond a limit. But I fail without my knowledge. Can you help me to know what the safe level of drinking is?

A. just dont drink before you operate the machine.

Q. What's the average blood-alcohol level. What's the average blood-alcohol level of the drivers pulled over in Minnesota?

A. here is a web page with Minnesota drunk driving statistics about alcohol related fatalities. not what you asked for exactly, but it might give you a clue:

References in periodicals archive ?
Study parameters influencing NOAEL and LOAEL in toxicity feeding studies for pesticides: Exposure duration versus dose decrement, dose spacing, group size and chemical class.
Australia (analogous to using LOAELs for advisory labeling in the United
LOAEL, Lowest Observed Adverse Effect Level; NOAEL, No Observed Adverse Effect Level; BMDL, Benchmark Dose Lower Confidence Limit; TK/TD, Toxicokinetic and Toxicodynamic; BW, Body Weight scaling; POD, Point of Departure; UF, Uncertainty Factor; [HD.sub.M] I, Human dose associated with an effect of magnitude M and population incidence I; RfD, Reference Dose; HQ, Hazard Quotient.
Ze wzgledu na trudnosci w ekstrapolacji LOAEL do NOAEL zaproponowano 2 scenariusze, ktore uwzgledniaje rozne wspolczynniki ekstrapolacji LOAEL na NOAEL, otrzymujac:
For DBT, we referred to the established LOAEL for intermediate exposure established by the ATSDR at 5 mg/kg/day for rodents (ATSDR 2005) and chose the highest concentration in our experiment to be 100-fold lower.
Po LOAEL stwierdzono wzrost wzglednej masy watroby i nerek, natomiast po wyzszych dawkach zanotowano takze zmniejszenie aktywnosci cholinoesterazy w surowicy i zmiany w mozgu (uszkodzenie hipokampa), a nawet przypadki smierci szczurow [7,22].
The exposure level (50 [micro]g/kg) chosen in this study is below TDI and Low Observable Adverse Effect Level (LOAEL) levels.
What should be considered low-dose exposure to endocrine-disrupting compounds has been debated, sometimes defined as below the lowest-observed-adverse-effect-level (LOAEL), the no-observed-adverse-effectlevel (NOAEL), or tolerable daily intake (TDI), but is now more often defined as environmentally relevant levels (Vandenberg 2014), that is to say, the level of the specific compound to which the population is generally exposed.
In the multitude of chemicals that have never been tested adequately at low doses but were already tested for carcinogenicity at high doses, we suggest testing doses in the range of actual highest human exposure, setting the LOAEL (lowest observed adverse effect level) from traditional toxicological studies as the highest dose, particularly in experiments designed to test endocrine-sensitive end points.
Using an ICR mouse model, we tested the effects of BPA exposure at three different concentrations that are considered to be safe: the tolerable daily intake value (TDI; 50 [micro]g/kg bw/day), the no-observed-adverse-effect-level (NOAEL; 5 mg/kg bw/day), and the lowest-observed-adverse-effect level (LOAEL; 50 mg/kg bw/day) (Bolt and Stewart 2011; Tyl 2009).

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