Environmental groups claim some children's bath products contain a suspected cancer-causing chemical in amounts that reach or exceed safe limits. The chemical in question -- 1,4-dioxane -- is found in products made by companies such as Johnson and Johnson, Disney, Kimberly-Clark, and Gerber, says David Steinman, head of the environmental publishing company Freedom Press.

The Environmental Protection Agency (EPA) calls this chemical, already known to cause cancer in animals, a probable human carcinogen. But there is no real regulation on the petroleum-derived chemical and the Food and Drug Administration (FDA) only recommends cosmetic companies limit the concentration of 1,4-dioxane to 10 parts per million (ppm).

Studies show Johnson's Kids Shampoo Watermelon Explosion contains the maximum recommended level of 10 ppm. They also reveal that Kid Care's Hello Kitty Bubble Bath contains 12.3 ppm of the chemical. And two adult shampoos have been found to have twice the recommended level of this chemical that is typically a manufacturing by-product.

It's been reported that nearly 57 percent of all baby soaps contain 1,4-dioxane. But Iris Grossman, director of communications at Johnson and Johnson, stresses that all of her products are within FDA limits.

Cancer is not the only risky link to children's bath products. It seems these items are also linked to early puberty development. And this is concerning because a fast-paced growth rate combined with children's porous skin increases susceptibility to toxins that can enter the bloodstream. One breast cancer expert says an increase in breast cancer risk is linked to toxic exposures during the formative years of life.

The ABC building in the Brisbane suburb of Toowong -- subject of a December 2006 post -- has been officially vacated following an investigation that turned up a cancer cluster among female employees.

Over the past 11 years, 10 women from this one building have been diagnosed with breast cancer. Eight of the women worked in the ABC newsroom, and most had been there for more than five years. The breast cancer risk for these women was six times higher than for the general population of women in the area. And while the investigation continues and clues are beginning to connect, the big question -- Why? -- has still not been answered.

It has been determined it is highly unlikely the increase in breast cancer was caused by exposure to radio frequency, low frequency electromagnetic radiation, or chemical contamination. According to experts, had any of these factors been at play, there would have been a rise in cancer among male employees as well as female employees. Therefore, it appears something specific to women has caused this cluster.

Perhaps clues will emerge from an analysis of lifestyle influences -- like smoking, diet, and alcohol and medication use -- and already women have answered questions pertaining to body weight, height, level of physical activity, and reproductive history.

One common theme among women is the use of oral contraceptives for periods varying from two to 18 years. Other interesting findings include the average number of babies born to the women -- 1.6 -- and the breastfeeding practices of the women -- each woman with a child breastfed for an average of 2.3 to 12 months -- and the educational background of the group -- of the 10 women, six have college degrees.

Experts says these are important factors. Early puberty, late menopause, lack of breastfeeding, use of oral contraceptives, and the trend of older mothers having fewer babies all can influence breast cancer risk. And so can level of education. Research shows increased rates of breast cancer in women with white collar jobs -- which is related to socioeconomic status and late childbearing.

Everything is important really -- because as breast cancer rates continue to skyrocket, all possible reasons need to be considered.

One in eight women in Australia will be diagnosed with breast cancer before the age of 85. About 13,261 women were diagnosed with breast cancer in 2006. And it is predicted that 14,818 will be diagnosed in 2011.