Onion scent coming through vents
I woke up in the middle of the night this evening to a very strong onion scent in my bedroom and discovered it is throughout the house. I do not have onions in the house nor do I have onion plants near my house. I've determined the scent is travelling though the heater vents. What could be causing this scent? I'd like to add that we do have skunks in the neighborhood, which ocassionally spray around the house (and the scent does travel through the house via the vents - YUCK). cAN SKUNK SMELL LIKE ONION OR CAN IT BE GASEOUS FUMES FROM THE HEATER? Heater was turned earlier in the day. Lastly, I had granite professionally installed in my kitchen today (on the other side of the house). Could the scent be one of the chemicals used for that project?