Category filter:

Acronym	Definition
RFD	Rural Free Delivery
RFD	Reference Dose
RFD	Request For Discussion
RFD	Redflagdeals.com (website)
RFD	Request For Deviation
RFD	Refund
RFD	Reproduction Fertility and Development (journal; Commonwealth Scientific and Industrial Research Organisation; Australia)
RFD	Receive Frame Descriptor
RFD	Restore Factory Defaults
RFD	Random File Description
RFD	Rear Flank Downdraft (meteorology)
RFD	Ready for Decision (various locations)
RFD	Retrieve Form for Data Capture
RFD	Rassemblement des Forces Démocratiques (Rally of Democratic Forces, Mauritania)
RFD	Route Flap Damping (computing)
RFD	Ready for Dispatch
RFD	Regional Field Director (various organizations)
RFD	Rate of Force Development (biomechanics & kinesiology)
RFD	Ready For Deployment
RFD	Royal Forestry Department
RFD	Rural Fire Department
RFD	Razorfen Downs (World of Warcraft game)
RFD	Regional Food and Drink (brewery; Washington, DC)
RFD	Request for Disbursement (various organizations)
RFD	Radio Frequency Detector (various companies)
RFD	Rochester Fire Department
RFD	Registered Firearms Dealer (UK)
RFD	Richmond Fire Department
RFD	Reserve Forces Duty
RFD	Regulation Fair Disclosure (US SEC)
RFD	Radio for Development (UK)
RFD	Religious Freedom Day
RFD	Recreation Facility Development (Canada)
RFD	Rapid Fielding Directorate (US DoD)
RFD	Remote File Disclosure
RFD	Red Flag Deals
RFD	Rockford, IL, USA - Greater Rockford (Airport Code)
RFD	Reno Fire Department (Reno, Nevada)
RFD	Radio Frequency Distribution
RFD	Rig Floor Display (wireless portable monitor; various companies)
RFD	Red Flags Daily
RFD	Reason for Decision
RFD	Remote Firing Device (RF device for remote firing/detonation)
RFD	Request For Documentation
RFD	Rescue Flotation Device
RFD	Research Flight Deck (NASA simulator)
RFD	Regulatory Flood Datum
RFD	Regroupement des Forces Démocratiques (French: Rally of Democratic Forces, Mauritania)
RFD	Radiofrequency Denervation
RFD	Request for Delivery
RFD	Rural Farm District
RFD	Relieved From Duty
RFD	Reason for Default (finance)
RFD	Radio Firing Device
RFD	Redirect for Deletion (Wikimedia Foundation)
RFD	Reentry Flight Demonstration
RFD	Ramadan Food Drive (Toronto, Canada)
RFD	Request for Disposition
RFD	Revised for Design
RFD	Revised Framework Directive
RFD	Release For Delivery

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.

Beyond the RfD: Broad Application of a Probabilistic Approach to Improve Chemical Dose-Response Assessments for Noncancer Effects

(iii) region which receives a dose equal to 1.5 to 2 times the reference dose;

A brachytherapy plan evaluation tool for interstitial applications

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.

Research on phthalic acid esters removal and its health risk evaluation by combined process for secondary effluent of wastewater treatment plant

Establishing local reference dose values and optimization strategies.

Diagnostic reference levels for the most frequent radiological examinations carried out in Brazil/Niveles de referencia diagnosticos para los examenes radiologicos mas frecuentes realizados en Brasil

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."

Watchdog Group Says 'Pervasive' Presence of Rocket Fuel Chemical in U.S. Food Poses Danger to 44 Million Women

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).

Thermoluminescent dosimeter [Li.sub.2][B.sub.4][O.sub.7]:Mn,Si--a false-dose problem/Termoluminestsentsdosimeeter [Li.sub.2][B.sub.4][O.sub.7]:Mn,Si: pseudodoosi probleem

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.

EPA actions boost instrument prospects

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.

The political economy of mercury regulation: the history of the new mercury rule offers important insights into improving environmental policymaking

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.

ENVIRONMENT: PARLIAMENT APPROVES DRAFT REGULATION ON PESTICIDE RESIDUES

More worrying were three samples that exceeded the 'acute reference dose'.

KIDS' TOXIC FOOD ALERT; Fears over chemical cocktail in fruit

More worrying were three samples that exceeded an even higher safety level - 'acute reference dose'.

Health scare over our Christmas fruit and veg

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).

Blood Mercury levels in young children and childbearing-aged women--United States, 1999-2002

RFD