Should I clean kerosene spilled on a hard outdoor surface?
Kerosene is not very volatile, and fairly hard to clean. It’s probably safer in the open air on a hard surface than it is on rags in a trash bin. The only problem will be the smell, which will last long past the time when all the visible liquid has evaporated. If the stone surface is near a water hose, you might try spraying the area. This will not “clean” the kerosene, as water does not dissolve oil, but it will spread it out over a larger area so that it might evaporate faster. I wouldn’t worry about the gloves either — just let them air out until the kerosene evaporates. Kerosene was the first chemical to be used for dry cleaning, so essentially you will be just dry cleaning your gloves.
