You're not alone. Experts have reached a consensus and recommend that you avoid these varieties -- identified by a triangle and number on the bottom of most containers -- for the following reasons:
#3 Polyvinyl Chloride (PVC) commonly contains di-2-ehtylhexyl phthalate (DEHP), an endocrine disruptor and probable human carcinogen, as a softener.
#6 Polystyrene (PS) may leach styrene, a possible endocrine disruptor and human carcinogen, into water and food.
#7 Polycarbonate contains the hormone disruptor bisphenol-A, which can leach out as bottles age, are heated, or exposed to acidic solutions. Unfortunately, #7 is used in most baby bottles and five-gallon water jugs and in many reusable sports bottles.
C.A.R.'s "Green Tips" are part of the Association's effort to raise member awareness about environmentally sound practices and offer REALTORS® ideas for greening their business practices and better serving their green-minded consumers. For more green real-estate-related tips and discussion, visit C.A.R.'s green blog at http://www.car.org/newsstand/greenblog/.