EAGLEVILLE, MONTGOMERY COUNTY, PA (WLVT-TV) - Holiday hazards may be causing you and your family trouble and you may not even realize it, so we're taking a closer look at what decor can pose a threat and how to alleviate it before it's a problem. Dave Parker, owner of the indoor air quality company, AdvantaClean of Gloucester and Camden Counties, says you should be aware of something called "Christmas Tree Syndrome."