Ouch.
So anyone in 10 meters might get killed, that 314 square metres of death, and anyone within 30 metres, a further 2800 or so square meters could end up with undefined permanent injuries.
It's not just the ears that don't like over pressure and shock waves, lungs are particularly vulnerable, then there are fetuses, intestines, eyes, brain.
But hey, it's not as if this reusable, low cost weapon, running on easy to come by LPG rather than rationed bullets, is in the hands of a bunch of fuckers who'd... say... drive a bulldozer over a protestor to demolish a hospital, or lob a flechette shell into a playground, or shoot an aid worker through the head, so it's nothing to worry about.