The memory collectors / Kim Neville.

"Evelyn has a mysterious ability, one that she feels is more a curse than a gift. She can feel the emotions people leave behind on objects and believes that most of them need to be handled extremely carefully. In another part of town, Harriet hoards thousands of these treasures and is starting to make her neighbors sick as the overabundance of heightened emotions start seeping through her apartment walls. They only know of one other person like them, and they fear the dark effects these objects had on him. Now, the same darkness is wrapping itself around another, dragging them down a path that already destroyed Ev's family once, and threatens to annihilate what little she has left"-- Provided by publisher.