Small Dose of Mercury – 3/20/05 A Small Dose of ™ Mercury An Introduction To The Health Effects of Mercury.

Slides:

Advertisements

Similar presentations

Contaminated Fish: The Mercury Connection. Natural Sources: Occurs naturally in soils, sediments, and rocks Volcanic eruptions Wildfires Man-Made Sources:

Advertisements

A Small Dose of Risk Assessment – 12/16/11 An Introduction To Risk Assessment – Risk Management and Precautionary Principle A Small Dose of Risk Assessment.

September 13, —3 p.m. Oliver Pollock Room Galvez Building 602 N. Fifth Street Baton Rouge, LA WELCOME: DR. MIKE MCDANIEL, SECRETARY What.

MOVEMENT ECOLOGY OF APEX PREDATORY SHARKS By: Dr. Neil Hammerschlag.

Methylmercury and the developing brain Louise C. Abbott, Ph.D., D.V.M. Department of Veterinary Integrative Biosciences November 26, 2013.

  A dense silvery liquid  The only common metal liquid at ordinary temperatures  Fair conductor of electricity  Known to ancient Chinese & Hindus.

What is Bioaccumulation?

CHAPTER 6 Curtailing Mercury’s Global Reach Linda Greer, Michael Bender, Peter Maxon, and David Lennett.

Mercury Pollution By, Nastaran Yazdi. Occurrence of Mercury in Nature:  A naturally occurring element.  Found mostly as cinnabar ore (HgS.)  Cinnabar.

Mercury and the Environment Bio Sci 2B. Mercury: The Element   Liquid at room temperature   Atomic #: 80   Atomic Mass: g   “Quicksilver”

Water Pollution NATURAL TYPES OF POLLUTANTS Many diseases are transferred by water bodies causing harmfull effects on human health, i.e. cholera,

Nutrition, Parasites and Toxins.  Provision, to cells and organisms, of the materials necessary (in the form of food) to support life  Intake of nutrients.

Earth Science Mercury in the Environment Santa Clara High School Todd Space Kenn Chase.

Small Dose of Lead and Mercury A Small Dose of Toxicology A Small Dose of Pb or Hg An Introduction To The Health Effects of Lead & Mercury.

By Elizabeth Hong and Jack Phillips. Menu (click on subjects to go to page and click on SUSHI to come back here) Introduction to Mercury Effect on Economics.

Small Dose of Mercury A Small Dose of Toxicology A Small Dose of Hg An Introduction To The Health Effects & Risk of Mercury Exposure ENV H 472 A - ENVIRONMENTAL.

Small Dose of Mercury – 3/20/05 A Small Dose of ™ Mercury An Introduction To The Health Effects of Mercury.

Earth Science 4.3 Water, Air, Land Resources

Toxicology & You – 12/28/11 Toxicology & You Chapter 1 (an introduction to toxicology) A Small Dose of Toxicology.

Mercury Pollution Mark Bentley David Herr NSF April 2011.

Wet Deposition of Mercury In The U.S. Results from the NADP Mercury Deposition Network, David Gay Illinois State Water Survey, Champaign, IL,

Mercury & Fish Mercury Mercury in the Environment Mercury and Humans

Water Pollution Part 2 Mercury.

Implications for Public Policy, Environmental Justice, and Public Health Education -By Mark Mitchell M.D., MPH.

Water Pollution Mercury.

Mercury Monitoring on the Fond du Lac Reservation Joy Wiecks, Air Quality Technician Fond du Lac Band of Lake Superior Chippewa December 15, 2005 WRAP.

BIOACCUMULATION Chapter 2.3. Chemical Pollutants Humans have been introducing synthetic (man-made) chemicals into the environment. Some examples are:

(c) McGraw Hill Ryerson Effect of Bioaccumulation on Ecosystems Amphibians (like frogs) live on both land and in the water.  They are also sensitive.

2.3 Effect of Bioaccumulation on Ecosystems  Amphibians are valuable indicators of environmental health because they’re sensitive to chemical changes.

Mercury Laura Rogers Chemistry 12 – A Block Mrs.McLellan.

A Public Health Response to Mercury in Fish Suzanne K. Condon, Assistant Commissioner Bureau of Environmental Health Assessment.

Toxicology & You – 4/1/04 Toxicology & You Chapter 1 (an introduction to toxicology) A Small Dose of ™ Toxicology.

An Assessment of Mercury Risk, Fish Advisory Awareness, and Fish Consumption in a Latino Population in Wisconsin Jason Ricco MD/MPH Candidate UW School.

Environmental health effects and treatment of mercury exposure Presentation by Sergio M. Navarro IAP 2006, Medical Geology/Geochemistry Massachusetts.

AIR POLLUTION. any adverse change in the composition of Earth's atmosphere as a consequence of it different gases, water vapor and particulate matter.

Mercury & Human Health Ann Melamed R.N., M.A. Environmental Health Specialist American Nurses Association May 2004.

As tale of Teresa Casal Ed.S. FCE LTER. Objectives-  Learn about the chemistry, the sources, cycling and health effects of mercury.  Trace Hg as it.

Quick Silver. Mercury got its chemical symbol from the Latin word Hydrargyrum which is a Greek word and means quick silver. Atomic Number: 80 Group: 12.

A Small Dose of Toxicology Ethics & Toxicology – 4/12/06 Protecting Environmental Health in Schools – An Introduction to the Ethics and Toxicology Keeping.

Protecting Ourselves from Mercury Created by: Mercury-Free Minnesota BE SAFE MN Preventing Harm MN

However we cannot grab the right of Breathing Food, water and shelter from the people of Sri Lanka We need to protect the health of all Sri Lankans.

(c) McGraw Hill Ryerson 2007 Chapter 2 Energy Flow & Nutrient Cycles 2.3 Effects of Bioaccumulation on Ecosystems p Words to Know: Bioaccumulationkeystone.

` Area VI: Pollution VIB2: Hazardous Chemicals in the Environment.

METHYLMERCURY IN FISH TOXICOLOGY & RISK CHARACTERIZATION METHYLMERCURY IN FISH TOXICOLOGY & RISK CHARACTERIZATION Air Toxics Workshop II June 12, 2007.

A Small Dose of MercuryMercury Toxicology – 10/13/04 ELSI & Mercury The Ethical, Legal, and Social Implications of Mercury Steven G.Gilbert, PhD,DABT

2.3 Effect of Bioaccumulation on Ecosystems

June 8, 2004Seafood: Assessing the Benefits and Risks1 of 17 Assessing and Managing the Risks Associated With Eating Seafood Don Schaffner, Ph.D. Professor.

.  Symbol: Hg  Atomic number: 80  Moderately active  Mercury reacts at about 350°C to form Mercury II oxide 2Hg(s) + O 2 (g) → 2HgO(s) A red powder.

MERCURY By: Jason 7.1. Hello my name is Jason and I chose the element Mercury. I chose to do mercury because when I looked at a thermometer, I see the.

Small Dose of Mercury – 05/25/10 A Small Dose of Mercury An Introduction To The Health Effects of Mercury.

MERCURY IN HEALTH CARE. Background on Mercury Mercury is naturally occurring a silvery white liquid, volatile heavy metal and produced through degassing.

Mercury In the Environment

A Small Dose of Dev Tox 04/02/04 An Introduction To Pregnancy and Developmental Toxicology A Small Dose of ™ Developmental Toxicology.

2.3 Effect of Bioaccumulation on Ecosystems  Amphibians are valuable indicators of environmental health because they’re sensitive to chemical changes.

Food Safety & Toxicology (4). Definitions Food contaminants are substances that are included unintentionally in foods. Some are harmless and others are.

Mercury in the Environment: Thinking critically about environmental contaminants.

2.3 Effect of Bioaccumulation on Ecosystems

Is a Poison! Why should you care?. 1in 10 women have mercury levels high enough to cause neurological effects in their offspring.

City of Gastonia Mercury Awareness. Mercury Issues In 1998 The City of Gastonia was experiencing occasional mercury violations at both of their Wastewater.

Determinant of health, pollution and regulations ( 管理 ) on health William W. Au, Ph.D.

THE NEUROTOXIC EFFECTS OF MERCURY VAPOR EXPOSURE FROM ARTISANAL AND SMALL- SCALE GOLD MINING Mackenzie Kennedy ‘16 ES366: The Environment and Human Health,Environmental.

Harshini Wickremasinghe May 5, 2011 Bio 464. Physical/Chemical Properties Silvery, heavy, mobile, liquid phase Only liquid metal at room temp. Odorless.

Human Impact of Methylmercury in the Water

Contaminated Fish: The Mercury Connection

2.3 Effect of Bioaccumulation on Ecosystems

2.3 Effect of Bioaccumulation on Ecosystems

Biogeochemical Cycle of Mercury (Hg)

2.3 Effect of Bioaccumulation on Ecosystems

Effect of Bioaccumulation on Ecosystems

Presentation transcript:

Small Dose of Mercury – 3/20/05 A Small Dose of ™ Mercury An Introduction To The Health Effects of Mercury

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Mercury the Metal

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Key Words Risk = Hazard X Exposure Dose / Response Individual Sensitivity

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology What Is This? Hg CH 3

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Methyl Mercury (MeHg) Hg CH 3

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Hg - Inorganic & Organic Hg CH 3 Inorganic – Quick Silver Hg Organic – Methyl Mercury

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Hg Facts & Uses Quicksilver 13.6 times the weight of water Evaporates at room temperature Bacteria change to Methylmercury Amalgam Many Industrial uses (thermometers, chemical reactions, gold mining)

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Hg – Like Water

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Hg – Solid Enough to Sit On

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Alchemy Medicine - cure syphilis? Egyptian tomb BC Ancient Awareness

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Greek God Mercury “For then she bare a son, of many shifts, blandly cunning, a robber, a cattle driver, a bringer of dreams, a watcher by night, a thief at the gates, one who was soon to show forth wonderful deeds among the deathless gods...” Description of the birth of the Greek God Mercury

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Occupational Exposure Gold mining. Hatters in the felt industry. Historical Events

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Historical Awareness

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Polluting with HG Discharge in Minamata Bay

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Fetal Effects of MeHg

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Life-Long Effects of MeHg

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Coal Fired Plants – Hg Emissions

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Outbreaks of MeHg Poisoning PlaceYearCases Minamata Nigata Guatemala Ghana Pakistan Iraq Iraq19601,002 Iraq197140,000 On-going2001???

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Inorganic - elemental mercury vapor Hg 0 Biotransformation Organic - Methylmercury - CH 3 Hg + Bioaccumulatio n Mercury to Methyl Mercury

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Mercury Release 50-75% mercury of released in the environment related to human activities

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Atmospheric Hg

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Ambient Water Sediments Edible Fish Inorganic Mercury Methyl- Mercury In Humans Biomethylation Bioaccumulation Exposure Discharge Biotransformation of Mercury

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Natural Degassing of the earth Combustion of fossil fuel Industrial Discharges and Wastes Incineration & Crematories Dental amalgams Hg 0 Hg 2+ CH 3 Hg + Environmental Sources of Mercury

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology The Mercury Cycle

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology A 270-year record Major atmospheric releases Natural Background (42%) Volcanic (6%) Anthropogenic (52%) Gold rush WWII Industrialization Significantly The last 100 years anthropogenic: 70% The last 10 years an apparent decline

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Blindness - Deafness Cerebral Palsy - Seizures Abnormal reflexes & muscle tone Retarded motor development Visual and Auditory Deficits Delayed motor development Altered DRH performance Neurobehavioral Effects

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Decrease in Brain Size Cell loss Disorganization of cells Cell migration failures Effects On The Brain

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Mercury Fishing Advisories  In 2000, 41 States have over 2000 fish consumption advisories  An increase from 27 in 1993  Pregnant women, nursing mothers, women who intend to have children, and children under 15

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Reduce environmental release Restrict global production and sale Advise women of child bearing age Research mechanisms of action Assess neurodegenerative effects Recommendations

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology MeHg Consumption Limits US EPA – 0.1 ug/kg-day US FDA – 1 ppm (mg/kg) in tuna

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Mercury A Global Issue Mercury distribution and exposure is a global problem

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Additional Information  Web Sites  World Health Organization - global prospective on mercury health effects. GDWQ/Chemicals/mercuryfull.htm  US EPA - Main site on Mercury.  The Mercury Policy Project (MPP). - works to raise awareness about the threat of mercury contamination -

Small Dose of Mercury – 3/20/05 A Small Dose of Toxicology Authorship Information For Additional Information Contact Steven G. Gilbert, PhD, DABT Web: This presentation is supplement to “A Small Dose of Toxicology”