Marine Litter Monitoring Activities in Bulgaria 23.01.2019 (1st Marine Litter Monitoring Activity in Bulgaria) 22.04.2019 (2nd Marine Litter Monitoring Activity in Bulgaria) 11.07.2019 (3rd Marine Litter Monitoring Activity in Bulgaria) 30.09.2019 (4th Marine Litter Monitoring Activity in Bulgaria) 22.01.2020 (5th Marine Litter Monitoring Activity in Bulgaria) 30.04.2020 (6th Marine Litter Monitoring Activity in Bulgaria) 31.08.2020 (7th Marine Litter Monitoring Activity in Bulgaria) 23.09.2020 (8th Marine Litter Monitoring Activity in Bulgaria) 07.11.2020 (9th Marine Litter Monitoring Activity in Bulgaria) 06.01.2021 (10th Marine Litter Monitoring Activity in Bulgaria) 29.01.2021 (11th Marine Litter Monitoring Activity in Bulgaria) 06.02.2021 (12th Marine Litter Monitoring Activity in Bulgaria)
