Today's Globe: bottled water, Caritas Norwood head, high blood pressure, Raptiva and brain infection, building boom

Tests on leading brands of bottled water turned up a variety of contaminants, including cancer-linked chemicals three times higher than California's health standard, according to a study being released today by an environmental advocacy group.

Caritas Christi Health Care, the six-hospital chain owned by the Archdiocese of Boston, disclosed the appointment of Margaret Hanson as president of its hospital in Norwood (second item).

The number of Americans with high blood pressure is on the rise because of growing rates of obesity, researchers said yesterday (fourth item).

Genentech Inc. said a patient taking its drug for chronic psoriasis, Raptiva, died after developing a rare brain infection (fifth item).

"We need our insurers and the state to hold the line on the incredible wealth shift we have seen in recent years from consumers to 'big healthcare,' " Jon B. Hurst, president of the Retailers Association of Massachusetts, writes in a letter to the editor. "Payments for unnecessary, duplicative, and costly expansions should not be borne by employers, their employees, and taxpayers."