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Qualitative and quantitative assessment of microplastics derived from antifouling paint in effluent from ship hull hydroblasting and their emission into the marine environment

Journal of Hazardous Materials 2024 19 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Soeun Eo, Soeun Eo, Soeun Eo, Taekhyun Kim, Taekhyun Kim, Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Soeun Eo, Taekhyun Kim, Taekhyun Kim, Soeun Eo, Soeun Eo, Won Joon Shim Soeun Eo, Won Joon Shim Won Joon Shim Soeun Eo, Soeun Eo, Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Moonkoo Kim, Soeun Eo, Soeun Eo, Soeun Eo, Soeun Eo, Won Joon Shim Soeun Eo, Soeun Eo, Soeun Eo, Won Joon Shim Soeun Eo, Soeun Eo, Soeun Eo, Soeun Eo, Soeun Eo, Soeun Eo, Soeun Eo, Won Joon Shim Won Joon Shim Won Joon Shim Taekhyun Kim, Won Joon Shim Soeun Eo, Soeun Eo, Won Joon Shim Won Joon Shim Taekhyun Kim, Soeun Eo, Soeun Eo, Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Taekhyun Kim, Won Joon Shim Won Joon Shim Moonkoo Kim, Won Joon Shim Moonkoo Kim, Moonkoo Kim, Taekhyun Kim, Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Moonkoo Kim, Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Moonkoo Kim, Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim Won Joon Shim

Summary

Researchers analyzed microplastic contamination generated during ship hull hydroblasting, a common maintenance procedure. They found that a single vessel produced billions of paint-derived particles, with the vast majority smaller than 5 millimeters and composed primarily of acrylic polymers. The study identifies ship maintenance activities as a significant but often overlooked source of microplastic emissions into marine environments.

Study Type Environmental

This study focused on microplastic (MP) contamination originating from ship paint, particularly during the hydroblasting of ship hull, to understand the emission characteristics of MPs into the marine environment. We evaluated paint particles generated from the hydroblasting of an ocean-going vessel based on their number, size, polymer type, and mass. Hydroblasting a vessel produced 4.3 × 10 particles, predominantly comprising acrylic particles, 99.9 % of which were smaller than 5 mm. Of the 44.1 kg of antifouling (AF) paint particles generated, 36.5 kg consisted of particles smaller than 5 mm, with 18.2 kg being identified as plastic emissions. Furthermore, we calculated the MP emission factor (8.43 g/m) for hydroblasting on AF paint by dividing the total emission by the wetted surface area (WSA) of the vessel. This factor was then extrapolated by multiplying it with the total WSA of global ships and their hull cleaning frequency to preliminarily estimate the annual global MP emissions. Consequently, a total of 665.6 tons of plastics was generated globally by hydroblasting, with approximately 550.2 tons of these being in the form of MPs. This study highlights the need for developing stricter regulations governing hydroblasting operations and waste disposal practices to protect marine environments from MP pollution.

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