Frequent laagvliegen boven Ridderkerk wat herrie en zware verontreiniging veroorzaakt. Hinderperiodes: do 21-12-2023 12:37 - do 21-12-2023 12:37, do 21-12-2023 14:02 - do 21-12-2023 14:02, do 21-12-2023 15:11 - do 21-12-2023 15:12, do 21-12-2023 16:19 - do 21-12-2023 16:20, do 21-12-2023 16:32 - do 21-12-2023 16:32, do 21-12-2023 19:19 - do 21-12-2023 19:19, do 21-12-2023 22:24 - do 21-12-2023 22:24, do 21-12-2023 22:26 - do 21-12-2023 22:27, do 21-12-2023 22:49 - do 21-12-2023 22:49.