'Reference dose' presentation slideshows

Scale and Complexity in Environmental Systems

1.16k views • 89 slides

Understanding Lake Erie: Its History, Current State, and Its Future

607 views • 52 slides

Water Quality

Water Quality. Water Quality. History of our understanding of waterborne disease Brief history of water treatment Drinking Water Standards: how do we decide what is allowed in the water we drink?. Germ theory. Pasteur (1822-1895) Proved that microorganisms cause fermentation and disease

865 views • 44 slides

L ake Erie Update

499 views • 39 slides

L ake Erie Update--2013

L ake Erie Update--2013. Dr. Jeffrey M. Reutter Director, Ohio Sea Grant College Program. Southernmost. Image: Ohio Sea Grant. Shallowest and Warmest. Photo: Ohio Sea Grant. 80:10:10 Rule. 80% of water from upper lakes 10 % direct precipitation 10% from Lake Erie tributaries Maumee

442 views • 29 slides

Comparing the Recommended Dietary Allowance to Toxicity Values for Zn, Se, Mn, and Mb

Comparing the Recommended Dietary Allowance to Toxicity Values for Zn, Se, Mn, and Mb. John L. Cicmanec, DVM, MS, ORD, USEPA, Cincinnati, OH Kenneth A. Poirier, PhD, TERA, Cincinnati, OH Charles O. Abernathy, PhD, OW, US EPA, Wash, DC. The Issue.

583 views • 28 slides

The Importance of Selenium/Mercury Research in Seafood and Health Factors

452 views • 24 slides

Perfluorooctanoic Acid (PFOA): Studies of Human & Animal Toxicity

Perfluorooctanoic Acid (PFOA): Studies of Human & Animal Toxicity. John L. Cicmanec, DVM, MS, ACLAM, U.S. EPA And DeeAnn Staats, PhD DEP West Virginia. What is PFOA (C-8)?. Ammonium Perfluorooctanoate Like hydrocarbons but with all Hydrogen atoms replaced with Fluorine

734 views • 18 slides

Linac Beam

Linac Beam. Components of the dose in water. primary photons scattered photons in the head (photons and Electrons of contamination) scattered photons in the middle. Treatment Head. P. middle. Components of the dose in the middle. <0,5 to 8 cm. 70 to 95 %. 5 to 30 %. < 5%.

952 views • 18 slides

A Joubert NATIONAL NUCLEAR REGULATOR

NNR FRAMEWORK FOR RADIOLOGICAL PROTECTION OF THE ENVIRONMENT SARPA, April 2009. A Joubert NATIONAL NUCLEAR REGULATOR. Introduction Regulatory philosophy Frame work Effects on Environment Dose Conversion Factors Reference organisms and habitats ICRP: Ref Animals and Plants Erica tool

316 views • 18 slides

Golden Rice: A boon or bane?

Golden Rice: A boon or bane?. Malnutrition and VAD. IPP. IPP. Geranylgeranyl diphosphate. Geranylgeranyl diphosphate. Phytoene synthase. Phytoene synthase. Phytoene. Phytoene. Rice lacks these enzymes. Phytoene desaturase. Phytoene desaturase. ?-carotene desaturase.

448 views • 17 slides

The Concept of Reference Dose Values in the European Union

284 views • 15 slides