Better to look at the sources for the short-items. BBQ also isn’t healthy, but presumably you aren’t doing that as often as using a gas stove and aren’t standing right next to it all the time. There some studies on that too, e.g. doi.org/10.1021/acs.est.5b01494 Here’s a study I once included about wood-burning which can be a significant cancer hazard in winter days in some regions: theguardian.com/…/wood-burners-urban-air-pollutio…doi.org/10.5194%2Facp-21-17865-2021