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Marine pollution: microplastics, waste and ballast water
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This Greek master's thesis examined marine pollution from microplastics, general waste, and ballast water, reviewing international regulations such as MARPOL and UNCLOS alongside the shipping industry's responsibilities. The work addresses how plastics enter marine food chains and assesses existing regulatory frameworks for controlling vessel-source pollution.
Η παρούσα διπλωματική διατριβή εκπονήθηκε στο πλαίσιο του Μεταπτυχιακού Προγράμματος «Ναυτιλιακή Διοικητική» του Πανεπιστημίου Πειραιώς. Πραγματεύεται το περιβαλλοντικό πρόβλημα της θαλάσσιας ρύπανσης καθώς και το σύγχρονο διαχειριστικό πλαίσιο για την αντιμετώπιση της γενικότερα από τον κλάδο της ναυτιλίας αλλά και ειδικότερα από τα πλοία και την ανθρώπινη δραστηριότητα. Πραγματοποιείται μία εκτενής αναφορά στο ίδιο το πρόβλημα της θαλάσσιας ρύπανσης σε συνάρτηση με το θαλάσσιο έρμα, τα κάθε είδους απόβλητα καθώς και τα μικροπλαστικά τόσο ως μορφή απορριμμάτων όσο ως εισβολείς στο ανθρώπινο διατροφικό σύστημα. Επισημαίνονται επίσης οι ισχύοντες κανονισμοί όπως προτείνονται από τους διεθνείς οργανισμούς και συμβάσεις (MARPOL, BWM, Basel Convention κ.ά.). Τέλος, αναλύονται τα αποτελέσματα χρόνιων επιστημονικών ερευνών όπως και προτεινόμενοι μέθοδοι διαχείρισης και επίλυσης όχι μόνο της θαλάσσιας ρύπανσης αλλά και των επιμέρους προβλημάτων που αυτή δημιουργεί.
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Microplastic Pollution in Ship-Sourced Wastewater: Assessment of Pollution Load Risk for Ballast and Bilge Water
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A study of ship-generated wastewater found substantial microplastic contamination in both ballast water and bilge water, identifying maritime transport as an underappreciated pathway for spreading microplastic pollution across ocean environments. The findings suggest that current international shipping regulations may be insufficient to prevent microplastic dispersal from vessel operations.
The Role of MARPOL in Reducing Microplastic Pollution: Implications for Marine Species Health
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This paper assessed the effectiveness of MARPOL (the International Convention for the Prevention of Pollution from Ships) in reducing marine microplastic pollution, examining how ship-sourced plastic waste regulations are implemented and enforced. It found significant compliance gaps and called for stronger international mechanisms.
Investigation of plastic and microplastic waste from ships in the marine environment
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Researchers investigated plastic and microplastic waste originating from ships in the marine environment, examining the types, quantities, and pathways by which vessel operations contribute to marine plastic pollution. The study addresses a relatively underexplored source of marine plastic contamination compared to land-based inputs.
An Overview of Microplastic Pollution: Origins, Movement, and Effects in Marine Ecosystems
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This bibliometric review synthesizes global evidence on how microplastics accumulate in marine ecosystems and enter the food chain through ingestion by seabirds, fish, whales, and turtles, ultimately reaching humans who consume seafood contaminated with toxic co-pollutants like heavy metals and PAHs. The rapid growth of this research field underscores microplastics as a systemic threat to marine biodiversity, food web stability, and human health.
Microplastics in Ship Sewage and Solutions to Limit Their Spread: A Case Study
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Researchers found microplastic particles in both grey water and post-treatment sewage from transport ships, with mean concentrations of 72 particles per litre in grey water and 51 per litre in treated sewage, demonstrating that ships represent a significant and underregulated source of microplastic pollution in protected marine areas.
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