The odor of burning plastic is unpleasant, so it'll have to be done away from and downwind of human habitation.
Waste incinerators have multiple layers of exhaust scrubbers there would be no over after the exhaust is sent through particulate filters, acid gas scrubbers, organic vapor recovery units. Hong Kong and Singapore both incinerate nearly all of their municipal and industrial wastes due to land restrictions on land fills in the small island nations. There’s no smell nor any toxin released after proper scrubbing. They generate a good amount of steam and electricity via the process as well both sold to the grid as district heating and grid electricity.