The tobacco and convenience store industries’ attempts to stop the city of Denver from passing a ban on flavored tobacco and nicotine products are largely falling on deaf ears at city hall as the measure moves toward a final vote this month. “To me, it’s big loud voices — but I don’t see the substance,” Denver City Councilwoman Serena Gonzales-Gutierrez, one of the measure’s three sponsors, said of the advertising and emails those industries have directed her way. The ban would prohibit the sale of nearly all flavored tobacco products within city limits, including flavored offerings for e-cigarettes, vaporizer cartridges and nicotine pouches as well as menthol cigarettes.