endocrine disruptorspresentation
TRANSCRIPT
+ BPA
What is BPA?
Bisphenol A (BPA)
Is a chemical substance produced in large quantities for the use
primarily in products of polycarbonate plastics and epoxy resins.
Examples of Polycarbonate plastics: Containers that store food
and beverage such as water and infant bottles.
Examples of Epoxy resins are used as lacquers to coat metal
products such as food cans, bottle tops, and water supply
pipes. Some dental sealants and composites may also
contribute to BPA exposure
-(CH3)2C(C6H4OH)2
+HOW DOES IT GET INTO YOUR
BODY?
The primary source of exposure to BPA for most people is
through the diet, and can imitate our body’s own hormones.
BPA can leach into food from the protective internal epoxy resin
coatings of canned foods and from consumer products such as
polycarbonate food containers.
The degree to which BPA leaches from polycarbonate bottles
into liquid may depend more on the temperature of the liquid or
bottle, than the age of the container.
+WHY SHOULD YOU BE
CONCERN?
Exposure to BPA is the main concern because of possible health
effects of BPA on the brain, behavior and prostate gland of
fetuses, infants and children.
The 2003-2004 National Health and Nutrition Examination Survey
(NHANES III) conducted by the Centers for Disease Control and
Prevention (CDC) found detectable levels of BPA in 93% of 2517
urine samples from people six years and older.
Recent study found that men with prostate cancer have BPA in
their urine at levels 2- to 4- fold higher than cancer-free men- -
BPA concentrations were especially high in patients under the age
of 40.
+HOW CAN YOU PREVENT
EXPOSURE TO BPA?
However, the Food and Drug Administration (FDA) has said that BPA is safe at the very low levels that occur in some foods. They are continuing its review of BPA, including supporting ongoing research. In the meantime, if you're concerned about BPA, you can take take theses precautions to reduce your exposure: Don’t microwave polycarbonate plastic food containers. Polycarbonate is strong and durable, but over time it may break down from over use at high temperatures.
Seek out BPA free products
Reduce your use of canned foods.
When possible, opt for alternatives such as glass, porcelain or stainless steel containers, particularly for hot food or liquids.
Use baby bottles that are BPA free.
+Methylmercury
What is it?
--A heavy liquid metal
What is it used for?
Found in: seed grain for longer
duration (livestock), bacterial
water (foreign countries).
IUPAC Name
Methylmercury
+ Chemical Structure/ Molecular
Formula and Health Effects/
Hazards
Chemical Structure
Molecular Formula
[CH3Hg]+.
Health Effects/ Hazards
Intellectual Disabilities that include:
-Down syndrome
-Cerebral palsy
-Microcephaly
As well as:
-Blindness
-Deafness
Allowed Amount of Exposure
Pregnant women, children, and infants are at greater risk
of exposure to mercury.
Sea food:
-Most fish have low amounts of methylmercury and
can be eaten safely in moderate amounts.
-Large, predatory, fish have high levels of
methylmercury. Limit portion size of fish. That
includes shellfish, swordfish, tilefish, tuna, marlin,
lobster, catfish. Etc
Alternatives !!
Decrease the amount of fish consumed
When traveling: stray away from water consumption, & limit portion
size of meats.
Other Countries, What are they
doing?
-Nothing. Exposure to Methylmercury is in their culture.
-There has been studies to prove that consumption of the
disruptor is not a threat.
-The federal government has put into action
restrictions, that advice pregnant and nursing women
and women who may become pregnant to stay away
from fish.
-
+Molecular Formula/ What is DEET?
Molecular Formula: C12H17NO
DEET- is an active ingredient in many insect repellent products. It is used to repel biting pests such as mosquitoes and ticks which may carry Lyme Disease or the West Nile Virus on mosquitoes.
These products are in a variety of liquids, lotions and sprays and impregnated materials. (Ex. Wrist bands)
+Short Term Hazards/ Long Term
Hazards
Short Term Hazards: Insect repellent depending on exposure
can lead to skin reactions such as blisters, burning and scars,
insomnia, and mood changes. If swallowed it has its own
serious hazards.
Long Term Hazards: More research is needed for long-term
health effects especially on children.
+Exposure
Exposure: Prolong use on game wardens and military
personnel may cause rashes. Over spraying or more than
normal use can be hazardous to health during the day.
No DEET should be sprayed on infants 2 months and younger
or to pregnant women it may affect fetuses. Women should be
advised about applying DEET.
+Alternatives Alternatives: Picaridin has been
widely used in other parts of the world.
It specifies with in chemicals on pepper and it appears to interfere with the mosquito’s ability to smell its prey.
The chemical is very effective on mosquitoes especially for the one’s that carry diseases, but it is less effective on some other mosquitoes that don’t rely on smell to find their prey.
A 20% formula of Picaridin can repel mosquitoes for 8-10 hours.
It is less irritating than DEET so it can always be a better choice for people with sensitive skin.
+Common Phthalates cont.
(BBP) Butylbenzylphtalate: IUPAC: bis(3,5,5-trimethylhexyl)
benzene-1,2-dicarboxylate
Molecular Formula: C26H42O4
Used in: Food conveyer belts, and paints
+Health Risks
• Thyroid Problems
• Early Puberty
• Infertility
• Hormones
• Deformation of
Reproductive Organs
• ADHD
+What is soy?
A protein alternative
An alternative to dairy for people who are lactose intolerant
Also used as an instant powder formula for babies allergic to
other instant powder formulas
+Hazards
Estrogen imbalance is a long-term affect
Processed soy is what causes most side effects
May cause females to stop menstruating
Can cause imbalanced moods
Males can start producing more estrogen
Pesticides applied to the crops can cause cancer
+Other Countries
Other countries use the most organic form of soy to gain the
most health benefits
Asian countries consume the most soy products
As new research is coming out most countries are using protein
other alternatives
+Allowed Amounts
Dosing depends on the persons overall health
For protein benefits 700-800 mg of soy per protein per liter
Sources
Bentor, Yinon. Chemical Element.com - Mercury. Jan. 26, 2014 <http://www.chemicalelements.com/elements/hg.html>.
UNEP. Jan. 26, 2014 http://www.unep.org/hazardoussubstances/Portals/9/Mercury/Documents/INC2/ZMWG5_Products_FS0111_04.pdf
http://www.epa.state.il.us/mercury/mercury-alternatives.html
http://www.atsdr.cdc.gov/mercury/docs/HealthEffectsMercury.pdfhttps://www.arhp.org/publications-and-resources/quick-reference-guide-for-clinicians/fish-and-health/evidence
http://oehha.ca.gov/fish/hg/
+Sources
www.nrdc.org/thisgreenlife/1006.asp
www.epa.gov
www.niehs.nih.gov/health/.../endocrine/
www.idph.state.il.us/.../deetfacts.htm
wwwnc.cdc.gov/
www.npr.org/
+Sources
http://www.epa.gov/ace/ace3draft/draft_pdfs/ACE3PhthalatesReviewPackage3-02-11.pdf·
http://www.consumer.org.nz/reports/plasticisers/what-are-plasticisers·
http://www.fda.gov/cosmetics/productandingredientsafety/selectedcosmeticingredients/ucm128250.htm·
http://www.sustainableproduction.org/downloads/PhthalateAlternatives-January2011.pdf·
http://www.healthytomorrow.org/attachments/DEHP_fact_sheet.pdf%20·
http://www.noharm.org/lib/downloads/pvc/Not_Too_Pretty.pdf·
http://www.plasticisers.org/en_GB/plasticisers/high-phthalates