Endocrine disrupting chemicals
Download
1 / 49

Endocrine Disrupting Chemicals - PowerPoint PPT Presentation


  • 251 Views
  • Updated On :

Endocrine Disrupting Chemicals. (EDCs) In Our Lives. Presented by the Labour Environmental Alliance Society (LEAS). With the assistance of Reach for Unbleached!. The endocrine system is a network of glands that release many different hormones, sometimes in very tiny amounts.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Endocrine Disrupting Chemicals' - micheal


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Endocrine disrupting chemicals l.jpg
Endocrine Disrupting Chemicals

(EDCs)

In Our Lives


Presented by the labour environmental alliance society leas l.jpg

Presented by the Labour Environmental Alliance Society (LEAS)

With the assistance of Reach for Unbleached!


Slide3 l.jpg

The endocrine system is a network of glands that release many different hormones, sometimes in very tiny amounts

Homones control growth, sexual and mental development, and many other functions


Edcs have many names l.jpg

Environmental estrogens many different hormones, sometimes in very tiny amounts

Hormone mimickers

Xenoestrogens

Anti-androgens

Phytoestrogens

Endocrine-disruptors

Endocrine-active compounds

Or, generically, Endocrine Disrupting Chemicals (EDCs)

EDCs have many names


They have some familiar impacts l.jpg
They have some familiar impacts many different hormones, sometimes in very tiny amounts

  • Carcinogens

  • Mutagens

  • Neurotoxins

    But it wasn’t until the 1990s that

    scientists began to understand. . .


The systemic problem l.jpg
The systemic problem many different hormones, sometimes in very tiny amounts

“Many compounds introduced into the environment by human activity are capable of disrupting the endocrine system of animals, including fish, wildlife, and humans. The consequences of such disruption

can be profound. . .” - From the consensus statement of the inter-disciplinary scientists who met at Wingspread Conference in July 1991.


Many studies link edcs to l.jpg
Many studies link EDCs to: many different hormones, sometimes in very tiny amounts

  • Reproductive disorders

  • Immune system dysfunction

  • Certain cancers, especially of reproductive organs

  • Birth defects of the penis and falling sperm counts

  • Neurological effects

  • Attention deficit disorder and poor memory

  • Low IQ


Orcas endangered species l.jpg
Orcas – Endangered Species many different hormones, sometimes in very tiny amounts

In the Salish Sea of Georgia Strait and Puget Sound, orcas are some of the most contaminated animals in the world, with EDCs from urban discharge from Vancouver and Seattle, from industrial waste, and from oil. Their PCB (polychlorinated biphenyl) levels would be high enough to cause death in other mammals.


Slide10 l.jpg

“If even as little as 15% more of world PCB stocks gets into the oceans, the extinction of marine mammals would be inevitable… The consequence of failing to control PCB releases to oceans will be the extinction of marine mammals and the chemical fouling of ocean fisheries, rendering them unsuitable for use by humans.”- Professor Joseph Cummins, University of Western Ontario


Animal evidence surrounds us l.jpg
Animal evidence surrounds us into the oceans, the extinction of marine mammals would be inevitable… The consequence of failing to control PCB releases to oceans will be the extinction of marine mammals and the chemical fouling of ocean fisheries, rendering them unsuitable for use by humans.”

  • Like many other mammals affected by EDCs, otters from the Lower Columbia River are infertile because the males’ penises are too small to mate

  • Alligators affected by pesticides cannot reproduce

  • Male fish develop female hormones

  • In birds, eggshells thin so chicks cannot survive


Slide12 l.jpg

If you eat into the oceans, the extinction of marine mammals would be inevitable… The consequence of failing to control PCB releases to oceans will be the extinction of marine mammals and the chemical fouling of ocean fisheries, rendering them unsuitable for use by humans.”“high on the food chain”- lots of meat, fish,or dairy products - you and your children are exposed to Endocrine Disrupting Chemicals


Many edcs are bioaccumulative l.jpg
Many EDCs are bioaccumulative into the oceans, the extinction of marine mammals would be inevitable… The consequence of failing to control PCB releases to oceans will be the extinction of marine mammals and the chemical fouling of ocean fisheries, rendering them unsuitable for use by humans.”

  • Instead of breaking down, or being eliminated after they are eaten, they concentrate up the food chain, to higher and higher concentrations.

  • Because we dump so much waste into the water,

    fish are particularly sensitive accumulators of EDCs


Among those most exposed l.jpg
Among those most exposed into the oceans, the extinction of marine mammals would be inevitable… The consequence of failing to control PCB releases to oceans will be the extinction of marine mammals and the chemical fouling of ocean fisheries, rendering them unsuitable for use by humans.”

  • Members of ethnic groups with fish-eating cultures

  • Fishermen and other people from coastal communities

  • Recreational fishers who eat their catch

  • People of the First Nations


If you live near an industrial site an autoshop or a highway you are exposed to edcs l.jpg

If you live near an industrial site, an autoshop, or a highway, you are exposed to EDCs.

If you use cosmetics, cleaning products, or plastic in your daily life, you are exposed to EDCs.


Slide17 l.jpg

Every month, the results of new research explain more of the puzzle of how EDCs affect fish, plants and animals,including humans.


Consensus statement from scientists who study edcs l.jpg
Consensus Statement puzzle of how EDCs affect fish, plants and animals,from scientists who study EDCs

“Every pregnant woman in the world has endocrine disruptors in her body that are transferred to the fetus.

“She also has measurable concentrations of endocrine disruptors in her milk that are transferred to the infant.”

Erice, Italy November 1995


The body has three marvelous communication systems l.jpg
The body has three marvelous communication systems puzzle of how EDCs affect fish, plants and animals,

  • The nervous system

  • The immune system

  • The endocrine system, a network of glands which release hormones


Hormones are chemical signals l.jpg
Hormones are chemical signals puzzle of how EDCs affect fish, plants and animals,

which regulate almost every biological process:

  • Growth and development

  • Mental development, mood, memory

  • Sexual maturation

  • Immune function


Hormones are released by the glands l.jpg
Hormones are released by the glands puzzle of how EDCs affect fish, plants and animals,

  • And travel through the blood until they reach their particular receptor cell

  • Where they fit, like a key in a lock, to turn on or off functions


Endocrine disrupting chemicals23 l.jpg
Endocrine Disrupting Chemicals puzzle of how EDCs affect fish, plants and animals,

  • Are natural or man-made compounds

  • Which fit into hormone receptors

  • Blocking the normal hormone, or

  • Acting instead of the normal hormone, in an irregular manner


Early development is crucial l.jpg
Early development is crucial puzzle of how EDCs affect fish, plants and animals,

A particular signal blocked during early pregnancy can affect both children and adults

For example, children of mothers who ate low doses of PCBs in fish from Lake Michigan show effects 11 years later


Known sources of edcs l.jpg
Known sources of EDCs puzzle of how EDCs affect fish, plants and animals,

  • Pesticides, herbicides, insecticides, fungicides, persistent and non-persistent, new and old, from DDt to tributyltin (TBT)


Example tributyltin tbt l.jpg

EXAMPLE: puzzle of how EDCs affect fish, plants and animals,Tributyltin (TBT)

Used as an anti-foulant for boats, and now banned for all small boats. Still legal on large boats and used on clothing to inhibit fungal growth. Most female snails in British Columbia harbours have imposex, including penises, because of TBT.


Known sources of edcs27 l.jpg
Known sources of EDCs puzzle of how EDCs affect fish, plants and animals,

  • Leaching from most plastic products, especially the phthalates used to make plastics and stabilize them so they do not break down in sunlight


Example di 2 ethylhexyl phthalate dehp l.jpg

EXAMPLE: puzzle of how EDCs affect fish, plants and animals,Di-2-ethylhexyl-phthalate(DEHP)

Health Canada warned in January 2002 that DEHP plasticizer in PVC medical devices like bags and tubing may harm developing babies, infants and young boys due to possible effects on male reproductive tract development


Known sources of edcs29 l.jpg
Known sources of EDCs puzzle of how EDCs affect fish, plants and animals,

  • Drugs such as birth control pills, DES, and cimetidine, especially in sewage water

    DES, diethylibestrol, given to mothers to prevent morning sickness, caused genital cancers in their children 20 years later.


Known sources of edcs30 l.jpg
Known sources of EDCs puzzle of how EDCs affect fish, plants and animals,

  • Ordinary household products, such as the nonylphenols added to detergents and soaps

  • Commercial cleaners


Example nonylphenol np l.jpg

EXAMPLE: puzzle of how EDCs affect fish, plants and animals,Nonylphenol (NP)

Added to pesticides and detergents as a “surfactant” to make the chemical work better in water, NP is one of the agents suspected of changing the sex of fish in rivers around the world.


Known sources of edcs32 l.jpg
Known sources of EDCs puzzle of how EDCs affect fish, plants and animals,

  • Industrial chemicals such as polychlorinated biphenyls (PCBs), dioxins, and polyaromatic hydrocarbons (PAHs).


Example benzo a pyrene l.jpg

EXAMPLE: puzzle of how EDCs affect fish, plants and animals,Benzo(a)pyrene

A by-product of the burning of fossil fuels such as oil and gas, benzo(a)pyrene is one of the polyaromatic hydrocarbons (PAHs) suspected of causing liver cancer in English Sole in Burrard Inlet.


Known sources of edcs34 l.jpg
Known sources of EDCs puzzle of how EDCs affect fish, plants and animals,

  • Heavy metals

    • Arsenic

    • Lead

    • Cadmium

    • Mercury


In other words endocrine disrupting chemicals are everywhere l.jpg

In other words, puzzle of how EDCs affect fish, plants and animals,Endocrine Disrupting Chemicals are everywhere

People are organizing, and governments are paying attention, to change this.

Right now EDCs are in our food, in the water, in the air.

In a mother’s milk,

and in the womb.


We don t know what this means l.jpg
We don’t know what this means puzzle of how EDCs affect fish, plants and animals,

  • Because the biology and the impacts are complicated, and exposures to many different

    EDCs occur over a lifetime

  • Species react differently

  • Age groups and sexes at exposure react differently

  • Impacts can occur in the next generation, or the next. . . . . .


Their impact on humans is not yet known l.jpg
Their impact on humans is not yet known puzzle of how EDCs affect fish, plants and animals,

  • but we do know some types of cancers and birth defects seem to be on the increase

    • This fetus has an eye defect which is on the increase, and the increase is not likely to be the result of better reporting


We are told l.jpg
We are told puzzle of how EDCs affect fish, plants and animals,

the EDCs are in our food and water at very low levels.

Hormones operate at these same low levels – parts per billion or trillion.


Hormone systems we know can be affected l.jpg
Hormone Systems We Know puzzle of how EDCs affect fish, plants and animals,Can Be Affected


The range of edcs which harm humans or wildlife l.jpg
The Range of EDCs puzzle of how EDCs affect fish, plants and animals,which harm humans or wildlife


Are there solutions yes l.jpg
Are There Solutions? Yes! puzzle of how EDCs affect fish, plants and animals,

  • The “Swedish Solution”

    • The Swedish Environment Committee has proposed that if a chemical is bioaccumulative or persistent, it should not be used in products, or released into the environment, thus bypassing the long and tedious scientific and political arguments about toxicity


Swedish blueprint l.jpg
Swedish Blueprint puzzle of how EDCs affect fish, plants and animals,

  • 2002: all companies must supply product information to allow informed consumer choice

  • 2007: all products on the market to be free from

    • substances that are persistent and liable to bioaccumulate,

    • lead, mercury and cadmium, and

    • substances that cause serious or irreversible effects on health or the environment

  • 2012: production to eliminate deliberate use of any of the above, and emissions to be free from substances that cause serious or chronic health effects


Are there solutions yes43 l.jpg
Are There Solutions? Yes! puzzle of how EDCs affect fish, plants and animals,

  • Prevention & Precaution:

    • Minimize toxics use

    • Tax incentives to invest in worker training for and switch to non-polluting alternatives.

For example, Glad produces an additive free plastic wrap.


The precautionary principle l.jpg
The Precautionary Principle puzzle of how EDCs affect fish, plants and animals,

  • If there is reason to doubt the safety of a discharge, don’t do it! In the absence of scientific certainty, err on the side of precaution.


Are there solutions yes45 l.jpg
Are There Solutions? Yes! puzzle of how EDCs affect fish, plants and animals,

  • Phase out the worst substances immediately:

    • Persistent, bioaccumulative toxic chemicals

    • Known endocrine-disrupting chemicals and others as identified.

  • Zero Discharge

    • Design Factories and plants so that they do not release their waste into the environment – in or outside the plant gates!


Working together for solutions l.jpg
Working together for Solutions puzzle of how EDCs affect fish, plants and animals,

  • The Cleaners and Toxins project from Labour Environmental Alliance Society helps workers get toxics out of commercial cleaning products, and the sewers and ecosystem, by acting on the toxic ingredients revealed by Material Safety Data Sheets.

  • The Office Paper Buying Club organized by

    Reach for Unbleached! lowers the price and increases access to recycled chlorine free paper, harnessing market forces to encourage clean production


Personal precautions l.jpg
Personal Precautions puzzle of how EDCs affect fish, plants and animals,

  • Don’t put plastics in the microwave

  • Do eat organic food as much as possible

  • Don’t breastfeed after 6 months

  • Do use Toxic Smart cleaning practices in your home and workplace


Further information l.jpg
Further Information puzzle of how EDCs affect fish, plants and animals,

  • www.ourstolenfuture.org

  • www.pollutionwatch.org

  • www.rfu.org

  • www.whyfiles.org

  • www.LEAS.org


Thank you l.jpg
Thank you puzzle of how EDCs affect fish, plants and animals,

  • Orca photo by Peter Thomas

  • Crop Duster and ship from the National Ocean Service Photo Gallery

  • Miranda Holmes

  • David Lane, T. Buck Suzuki Foundation

  • Joan Sell


ad