Protecting Ourselves from Mercury - PowerPoint PPT Presentation

1 / 24
About This Presentation
Title:

Protecting Ourselves from Mercury

Description:

Title: Addressing Mercury Contamination of Minnesota s Waters Living Green Expo 2004 Author: Information Technology Last modified by: Lois Marie Gibbs – PowerPoint PPT presentation

Number of Views:175
Avg rating:3.0/5.0
Slides: 25
Provided by: Information1626
Category:

less

Transcript and Presenter's Notes

Title: Protecting Ourselves from Mercury


1
Protecting Ourselves from Mercury
  • Created byMercury-Free Minnesotawww.mercuryfree
    minnesota.orgBE SAFE MNwww.besafenet.comPrevent
    ing Harm MN
  • www.preventingharmminnesota.org

2
What is Mercury?
  • Known as quicksilver
  • A naturally occurring element in oceans, rocks
    soils
  • Liquid at room temperature
  • Used in a variety of products
  • Toxic persistent in the environment

3
What are the sources of Mercury pollution in MN?
  • Energy 51
  • Taconite processing 21
  • Purposeful use 28
  • Municipal solid waste combustion 5
  • Volatilization of disposed products 7
  • Smelters that recycle cars, appliances 5
  • Coal fired Power plants 46

4
Trends in Minnesota Mercury Emissions1990-2000
12,000
10,000
8,000
Pounds
6,000
4,000
2,000
0
1990
1995
2000
YEAR
Source Minnesota Pollution Control Agency March
2004
5
Mercury Products
  • Fluorescent high intensity discharge lamps
  • Thermostats switches
  • Thermometers
  • Steam irons with 15-minute automatic shut-off
  • Dental amalgam
  • Old alkaline batteries, some button batteries
  • Old latex paints (pre 1990) some oil based
    paints

6
Number one source of mercury exposure for humans
is fish consumption.
7
Bioaccumulation
  • Mercury is deposited in lakes where bacteria
    convert it to toxic methylmercury (MeHg)
  • MeHg is taken up by tiny animals and plankton
  • MeHg then accumulates in the tissues of fish and
    other organisms
  • Wildlife like eagles, osprey, loons, turtles,
    mink, otters and other fish-eaters are also
    affected
  • All Minnesota waters contaminated.

8
Who is at the top of the food chain?
9
Problem with Methylmercury
  • Potent neurotoxin.
  • Like lead, mercury effects are being detected at
    lower and lower levels.
  • MeHg passes through the placenta to the
    developing fetus and is also passed on to nursing
    infants in breast milk.(Breastfeeding is still
    best for babies.)

10
Newborns at Risk
  • Per new EPA estimates
  • 1 in 6 U.S. women has mercury body burden that
    could put her baby at risk for adverse effects on
    development
  • could affect an estimated 630,000 newborns a year

11
Fish are Healthy
  • Source of protein, vitamin D omega-3 fatty
    acids
  • Essential for fetal and infant brain development
  • Contribute to heart and mental health

Dont stop eating fish!
12
What can we do?BE SAFE-Heed Early
Warnings-Put Safety First -Choose the Safest
Solutions -Exercise Democracy
13
Heed Early Warning Signs
  • Testing by the Minnesota Department of Natural
    Resources shows that mercury is present in 100
    of lakes and fish tested.
  • Mercury is a known neurotoxin and rates of
    children with learning disabilities are on the
    rise.
  • There should be more public awareness about the
    risks of eating certain fish and more efforts to
    eliminate the contamination.

14
Put Safety First
  • Public health policy that asks expectant mothers
    to give up certain foods while allowing
    industries to continue contaminating them is
    absurd. Sandra Steingraber
    Having Faith
    An Ecologists Journey to Motherhood

15
Choose the Safest Solutions
  • Clean Energy
  • Mercury Free Products

16
Smart Fish Choices
  • Follow these guidelines
  • Eat smaller fish, panfish
  • rather than predator fish
  • Consider total fish consumption
  • Limit intake of some fish for pregnant/nursing
    women and young children.
  • Trimming fat and cooking will not reduce mercury
    in fish.

17
What about canned tuna?
  • Canned white albacore has 3-4 times more
    mercury than chunk light
  • Women of childbearing age can eat 8 oz a week of
    canned chunk light
  • Younger children can eat about ½ can of chunk
    light tuna per week.
  • Women of childbearing age kids under 15 should
    limit canned white albacore tuna to once a
    month

18
IATPs Smart Fish Calculator
  • Tool to estimate safe consumption level per EPA
    guidelines
  • Go to www.iatp.org/foodandhealth

19
Reduce your Use
  • Conserve energy to reduce electricity demand
  • Replace mercury thermometers with digital ones
  • Purchase mercury-free thermostats, switches
  • Use mercury free batteries
  • Ask your dentist for non-mercury amalgams
  • Dispose of all mercury products as hazardous
    waste, find information for your county at
    www.moea.state.mn.us/hhw/programs.cfm

20
Buy Wind Power
  • Replace fossil-fuel based energy with renewable
    sources like solar wind
  • Support renewable energy by choosing wind power
    from your local utility

21
Exercise Democracy
  • Tell the MN Pollution Control Agency to protect
    us from mercury.
  • Tell the FDA to issue adequate mercury warnings.
  • Vote!

22
Federal Laws and Regulations on Mercury Pollution
  • Current administration proposals delay
    significant mercury reductions for 10 years.
  • Clean Air Act - 90 reduction by 2008
  • Clear Skies Initiative - 69 reduction by 2018
  • Proposed MACT rules for coal plants align with
    Clear Skies and allow 7X Hg pollution of Clean
    Air Act

23
Support Local Initiatives
www.mercuryfreemn.org www.besafenet.com www.p
reventingharmminnesota.org
24
We must prevent mercury pollution to protect our
children!
Write a Comment
User Comments (0)
About PowerShow.com