The 2 stroke leaf blower is literally burning oil to run, so the emissions are much, much worse. (that's how 2 stroke engines work). Also note your ride on mow

The 2 stroke leaf blower is literally burning oil to run, so the emissions are much, much worse. (that's how 2 stroke engines work). Also note your ride on mower (and other small IC things) don't have catalytic converters or anything at all to manage emissions, so the stuff coming out the exhaust is multiple orders of magnitudes worse - especially for the user who is standing right there breathing it in. It isn't just about gallons consumed per hour, it's about what comes out the exhaust.