Phthalates is a chemical that is mimicking the female hormone estrogen it disrupts the development of baby boys, the first evidence linking certain chemicals in everyday plastics to effect men and boys. The chemical implicated is Phthalates, which is found in plastic and it makes plastics more pliable it is common in water bottles, many toys, baby feeding bottles, and paints. The studies suggest that these chemicals influence on the male hormone testosterone on healthy development of males. The research highlights the need for tougher controls on gender bending chemicals, says Gwynne Lyons Toxic Adviser to the World Wildlife Fund, UK otherwise wildlife and the males will be the losers.

The incriminating evidence came from a study of 85 baby boys born to women exposed to everyday levels of Phthalates during pregnancy. She measured the distance between the anus and the base of the penis, earlier studies have shown the anogenital distance is twice for girls than boys.

In animals the anogenital is reduced by Phthalates , which mimics estrogen and causes the testosterone not to do it’s normal job. In higher doses animals develop more serious abnormalities, such as under developed testicles and a misplaced opening to the urethra on the penis, these symptoms are called Phthalate syndrome.


In 2008 researchers of Calgary University sampled populations of minnows in the Oldman and the Bow River, these rivers flow downtown and is where they get their drinking water. The random catch was overwhelmingly females, the males had all but vanished. The Alberta researchers found that the leading cause is a broad range of potent chemicals that carry signals around the body of living animals and males to trigger or turn off physiological activity. These chemicals are not just in hot spots down stream from cities and feed lots. Some 23,000 toxic compounds are estimated to be present in Canadian environment, with 1,000’s of new ones added every year. Another 7,000 pesticides for mutations are registered with the Federal Authorities, at least 60 of these are banned in most other industrialized countries.

In Canada researchers found a clear shift towards fewer males being born, first appeared in the 70’s, the shift in ratios had amounted to a decline of 2.2 males for every 1,000 live births.