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  1. The discharge of raw sewage into the sea can create a health hazard. Sewage can also lead to oxygen depletion and can be an obvious visual pollution in coastal areas - a major problem for countries with tourist industries.

  2. The environmental impact of shipping include air pollution, water pollution, acoustic, and oil pollution. [1] Ships are responsible for more than 18% of nitrogen oxides pollution, [2] and 3% of greenhouse gas emissions. [3]

  3. 15 gru 2022 · Sewage pollution of our oceans and other water bodies poses several challenges and has myriad impacts, as discussed in the article. Sewage is the single biggest factor causing coastal pollution. A worldwide estimate shows that 104 of 112 coral reefs are impacted by sewage directly or indirectly.

  4. 3 lis 2018 · Most importantly, the marine environment continues to be polluted by discharges of sewage from ships under the IMO’s type approval regime. No one wins.

  5. So-called ‘operational’ pollution is impossible to avoid: sewage, waste materials (such as batteries, food waste, plastics and chemicals), bilge water (produced during the cleaning of machine and engine spaces, this water accumulates at the lowest point of a ship’s hull and is a mixture of seawater, fuel oil, lubricating oil, debris ...

  6. 10 mar 2022 · Recently, International Convention for the Prevention of Pollution from Ships (MARPOL), national and regional legislations around the world have been developed a lot to control the influence of ship sewage on water environment.

  7. 15 mar 2021 · As shown in Fig. 1, shipping generates multiple waste streams responsible for emissions of hundreds of contaminants to the marine environment. Hence, it is a huge challenge to predict and compare the waste streams’ environmental impacts due to emissions of contaminants.

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