Acronyms

RFD

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AcronymDefinition
RFDRural Free Delivery
RFDReference Dose
RFDRequest For Discussion
RFDRedflagdeals.com (website)
RFDRequest For Deviation
RFDRefund
RFDReproduction Fertility and Development (journal; Commonwealth Scientific and Industrial Research Organisation; Australia)
RFDReceive Frame Descriptor
RFDRestore Factory Defaults
RFDRandom File Description
RFDRear Flank Downdraft (meteorology)
RFDReady for Decision (various locations)
RFDRetrieve Form for Data Capture
RFDRassemblement des Forces Démocratiques (Rally of Democratic Forces, Mauritania)
RFDRoute Flap Damping (computing)
RFDReady for Dispatch
RFDRegional Field Director (various organizations)
RFDRate of Force Development (biomechanics & kinesiology)
RFDReady For Deployment
RFDRoyal Forestry Department
RFDRural Fire Department
RFDRazorfen Downs (World of Warcraft game)
RFDRegional Food and Drink (brewery; Washington, DC)
RFDRequest for Disbursement (various organizations)
RFDRadio Frequency Detector (various companies)
RFDRochester Fire Department
RFDRegistered Firearms Dealer (UK)
RFDRichmond Fire Department
RFDReserve Forces Duty
RFDRegulation Fair Disclosure (US SEC)
RFDRadio for Development (UK)
RFDReligious Freedom Day
RFDRecreation Facility Development (Canada)
RFDRapid Fielding Directorate (US DoD)
RFDRemote File Disclosure
RFDRed Flag Deals
RFDRockford, IL, USA - Greater Rockford (Airport Code)
RFDReno Fire Department (Reno, Nevada)
RFDRadio Frequency Distribution
RFDRig Floor Display (wireless portable monitor; various companies)
RFDRed Flags Daily
RFDReason for Decision
RFDRemote Firing Device (RF device for remote firing/detonation)
RFDRequest For Documentation
RFDRescue Flotation Device
RFDResearch Flight Deck (NASA simulator)
RFDRegulatory Flood Datum
RFDRegroupement des Forces Démocratiques (French: Rally of Democratic Forces, Mauritania)
RFDRadiofrequency Denervation
RFDRequest for Delivery
RFDRural Farm District
RFDRelieved From Duty
RFDReason for Default (finance)
RFDRadio Firing Device
RFDRedirect for Deletion (Wikimedia Foundation)
RFDReentry Flight Demonstration
RFDRamadan Food Drive (Toronto, Canada)
RFDRequest for Disposition
RFDRevised for Design
RFDRevised Framework Directive
RFDRelease For Delivery
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References in periodicals archive
"Recommended Use of Body Weight 3/4 as the Default Method in Derivation of the Oral Reference Dose." EPA/100-R11-00.
(iii) region which receives a dose equal to 1.5 to 2 times the reference dose;
Calculating parameters Values Note Concentration of ([mu], [sigma]) Follow Gaussian the pollutants C (mg/L) distributions Reference dose mg/(kg * d) RfD By mouth Exposure volume at one 100 time V (mL) Exposure times per year (n) 40 Average body weight (kg) 70 Average lifespan (a) 70 Average exposure dose per d = (n x V x unit of body mass [10.sup.-3] x C)/365 x 70 Lifelong health risk P P = d x [10.sup.-6]/RfD Individual health risk Pa Pa = P/70 Maximum acceptable 1.0 x [10.sup.-6] risks [9] TABLE 3: The quantile table of the life risk and the annual risk of DiOP.
But the federal "safe dose" level corresponds to almost 10 times this dose which EWG says "clearly indicates that the current EPA reference dose and cleanup guidance is several orders of magnitude too high."
The reference dose irradiator 6527B (Sweden) equipped with a [sup.90]Sr/[sup.90]Y [gamma]-radiation source was used to give lower doses (0.1-1.0 Gy).
Although no new regulatory action has been taken for perchlorate this year, the EPA adopted in February a new reference dose for perchlorate that sets the Drinking Water equivalent level at 24.5 ppb.
For example, the New York Times reported that government scientists suggested that 630,000 babies born each year "might have been exposed as fetuses to unsafe levels of mercury." To understand the alleged basis for that number, you need to understand the concept of a reference dose, which is the basis of the "unsafe" level mentioned above.
In addition, the concepts of an "acute reference dose" (the amount of a substance in food that can be ingested over a short time without appreciable risk to the consumer) and of "acceptable daily intake" (the amount of a substance that can be ingested daily over a lifetime) should take account of "the sensitive groups within the population (e.g.
More worrying were three samples that exceeded the 'acute reference dose'.
More worrying were three samples that exceeded an even higher safety level - 'acute reference dose'.
However, approximately 6% of childbearing-aged women had levels at or above a reference dose, an estimated level assumed to be without appreciable harm ([greater than or equal to]5.8/ [micro]/L).
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