SEATTLE - It may the last thing on your mind when you get ready for a shower, but that new shower curtain may bring some unwanted friends into your home. A study found that more than 100 chemicals are released by some curtains, and some are at levels that violate indoor air safety standards. "I think what's most surprising was the amount of chemicals that were released into the air when you bring a new shower curtain home," said Ivy Sager-Rosenthal of Washington Toxics Coalition. "Well there is a range of volatile aromatic hydrocarbons that are coming off. These compounds...