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Title: Environment/Environmental Health/Endocrine Disruptors - Introduction to Hormone Disrupting Chemicals An introduction to the effects of hormone disrupting chemicals on man and the environment, and the response of governments and industry to this problem. Written for anyone interested in the subject. I
National_Toxicology_Program_Center_for_the_Evaluation_of_Risks_to_Human__Reproduction_(CERHR) Resource for the latest information about potentially hazardous effects of chemicals on human reproduction and development.

New_Studies_Confirm_Dangers_of_Atrazine,_a_Widely_Used_Agricultural_Weed-Killer NRDC website describes research suggesting the atrazine is a carcinogen and causes ual abnormalities in male frogs.

OECD_Endocrine_Disruptors_Assessment Part of the OECD Test Guidelines Programme, focused on reaching international agreement on the testing and assessment of chemicals with respect to their endocrine disrupting potential.

Our_Stolen_Future Provides updates about endocrine disruption created by man-made chemical contaminants that interfere with hormones in humans and wildlife.

PCB_Home_Page_at_EPA Provides information on Polychlorinated Biphenyls (PCB's). Background, resources and links to many topics.

Persistent_Organic_Pollutants_(POPs) These chemical substances persist in the environment, bioaccumulate through the food web, and pose a risk of causing adverse effects to human health and the environment. From the United Nations Enviro


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Introduction to hormone disrupting chemicals Home Health concerns Suspect chemicals The endocrine system Issues Policy responses Take Action! (chemical reaction) About this site

Introduction to Hormone Disrupting Chemicals

These pages provide an introduction to the effects of hormone disrupting chemicals on man and the environment, and the response of Governments and industry to this problem. Other terms used to describe these chemicals include xenoestrogens, oestrogenic (estrogenic), hormone mimicking and endocrine disrupting chemicals. These pages are aimed at anyone interested in the subject, and include references to other research and reviews for those interested in investigating the field further. 2006 update: EU governments and the new EU Parliament are currently finalising a new law (REACH) that will, if it is strong enough, help phase out the worst chemicals - to find out more & to lobby for it to be strengthened, visit these two sites: Friends of the Earth, Greenpeace & EEB chemical reaction campaign: http://www.chemicalreaction.org WWF DetoX campaign: http://www.panda.org/detox NB: This site is currently in 'maintenance mode' only - I updated broken links in November 2002, but have not done any significant text updating since 1999.

Human health concerns

Testicular cancer is increasing rapidly, whilst sperm counts are falling. Breast cancer is increasing, and girls are reaching puberty earlier. More details here.

Suspect chemicals

The chemicals involved include pesticides such as DDT, lindane and vinclozolin and industrial chemicals such as phthalates, bisphenol A and alkylphenols. The pesticides can be found in residues on food, phthalates are in many PVC plastics and bisphenol A is present in the linings of many food cans. More details here.

The role of the endocrine system

The endocrine (or hormonal) system controls many crucial aspects of the working of the body, for example development of ual characteristics, and development of the brain. Chemicals can disrupt the endocrine system by a range of mechanisms, but the impact of this disrupt is often influenced by its timing, with development the most crucial time. More details here.

Some controversial issues

As a fairly new area of science, with economic significance to the chemical industry, there are some very controversial issues, including the significance of low doses, deficiencies in chemicals regulation and the lessons of BSE. More details here.

The response of Governments and industry

Governments in several countries have started to develop policies towards hormone disrupting chemicals. Most of these policies involve reasearch and screening of chemicals, rather than regulatory action on individual chemicals. The chemical industry is unwilling to accept that endocrine disruption is any more than a 'hypothesis'. More details here. There is also more information on chemicals policy available at Friends of the Earth's 'Safer Chemicals Campaign' site & the chemical reaction and WWF Detox sites (see top of page).

Taking action

There are many actions that consumers can take to reduce their exposure to hormone disrupting chemicals, both through buying different products and by pressurising companies and governments to phase them out. It is virtually impossible, however, to avoid all exposure, as these chemicals are extremely widespread. For more information, see Friends of the Earth's 'Safer Chemicals Campaign' site & the chemical reaction and WWF Detox sites (see top of page).

Other sources of information

A range of other websites cover hormone disrupting chemicals and chemicals policy. I would particularly recommend the Tulane University 'Environmental Estrogens and Other Hormones' site; there's more links here, on the Friends of the Earth site.

About this site

This site started in July 1995 (which is why it looks a little dated these days), and is written and produced by Dr A. Michael Warhurst, an environmental chemist who now works for Friends of the Earth in London. For a brief history of this site, and why I created it, see about this site. To find out more about me & my work, see my brief cv. This page waslast (slightly) updated in June 2004, and my details and somelinks were updated in November 2006URL: http://website.lineone.net/~mwarhurst/index.html
 

An

introduction

to

the

effects

of

hormone

disrupting

chemicals

on

man

and

the

environment,

and

the

response

of

governments

and

industry

to

this

problem.

Written

for

anyone

interested

in

the

subject.

I

http://website.lineone.net/~mwarhurst

Introduction to Hormone Disrupting Chemicals 2008 November

dvd rental

dvd


An introduction to the effects of hormone disrupting chemicals on man and the environment, and the response of governments and industry to this problem. Written for anyone interested in the subject. I

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