Frequent laagvliegen boven Ridderkerk wat herrie en zware verontreiniging veroorzaakt. Hinderperiodes: vr 1-9-2023 09:19 - vr 1-9-2023 09:19, vr 1-9-2023 14:14 - vr 1-9-2023 14:14, vr 1-9-2023 15:14 - vr 1-9-2023 15:15, vr 1-9-2023 16:17 - vr 1-9-2023 16:17, vr 1-9-2023 18:11 - vr 1-9-2023 18:11, vr 1-9-2023 19:55 - vr 1-9-2023 19:55, vr 1-9-2023 23:58 - vr 1-9-2023 23:58.