Diablo Canyon's KI procedure: 1. KI is most effective when administered immediately prior to exposure to radioiodine, therefore administration of KI should be considered when: 1.1 Exposure situations exist where calculated iodine dose equivalent to the thyroid can be 25 rem or greater. 1.2 No current air analysis is available and high levels of radio‑iodine release are suspected prior to undertaking an emergency response operation
Diablo Canyon is considering adopting the following guidance for ingestion of KI during an accident based on FDA's post Chernobyl recommendation. Guidance Potassium Iodide as a Thyroid Blocking Agent in Radiation Emergencies U.S. Department of Health and Human Services Food and Drug Administration Center for Drug Evaluation and Research (CDER) December 2001 Procedural Threshold Thyroid Radioactive Exposures and Recommended Doses of KI for Different Risk Groups Predicted Thyroid Rem (cGy) KI dose (mg) Number of 130 mg tablets number of 65 mg tablets Adults over 40 yrs ≥500 130 1 2 Adults over 18 through 40 yrs ≥10 130 1 2 Pregnant or lactating women ≥ 5 130 1 2 Adoles. over 12 through 18 yrs* ≥ 5 130 1 2 Children over 3 through 12 yrs ≥ 5 65 1/2 1 Over 1 month through 3 years ≥ 5 32 1/4 1/2 Birth through 1 month ≥ 5 16 1/8 1/4 *Adolescents approaching adult size (> 70 kg) should receive the full adult dose (130 mg). The protective effect of KI lasts approximately 24 hours. For optimal prophylaxis, KI should therefore be dosed daily, until a risk of significant exposure to radioiodines by either inhalation or ingestion no longer exists From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of [email protected]<mailto:[email protected]> Sent: Monday, July 09, 2012 9:33 AM To: [email protected]<mailto:[email protected]> Subject: RE: Powernet: When to issue KI? Ditto Palo Verde From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of Barber, Jerry Sent: Monday, July 09, 2012 9:18 AM To: [email protected]<mailto:[email protected]> Subject: RE: Powernet: When to issue KI? Robinson is the same as STP and SONGS From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of Earls, Leonard Sent: Monday, July 09, 2012 11:55 AM To: '[email protected]' Subject: RE: Powernet: When to issue KI? South Texas Project is the same as SONGS. Regards, Leonard Earls Consulting Engineer 361-972-7759 [email protected]<mailto:[email protected]> ________________________________ From: [email protected]<mailto:[email protected]> [mailto:[email protected]]<mailto:[mailto:[email protected]]> On Behalf Of [email protected]<mailto:[email protected]> Sent: Monday, July 09, 2012 10:54 To: [email protected]<mailto:[email protected]> Subject: Powernet: When to issue KI? San Onofre Nuclear Generating Station would like to know, During an emergency when would you issue KI to emergency response personnel and what is the basis? SONGS response; 25 Rem Thyroid CDE based on EPA 400. Thank you, Chris Ahola, CHP SONGS Southern California Edison [email protected]<mailto:[email protected]> ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/[email protected]/ Reply to: [email protected]<mailto:[email protected]> If Questions, contact Mike Russell, CHP at [email protected]<mailto:[email protected]> --- NOTICE --- This message is for the designated recipient only and may contain confidential, privileged or proprietary information. If you have received it in error, please notify the sender immediately and delete the original and any copy or printout. Unintended recipients are prohibited from making any other use of this e-mail. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we accept no liability for any loss or damage arising from the use of this e-mail or attachments, or for any delay or errors or omissions in the contents which result from e-mail transmission.
