When you spray perfume, there’s a smell, but then it dissipates. But surely if everyone is spraying perfume, and making other smells, the world must be accumulating smells. Does the world in general have an odour? And is it getting more potent?
Jade Bulteel, Shropshire
Post your answers below (and new questions) or send them to nq@theguardian.com. A selection will be published on Sunday.
