PREVENTION OF AIR POLLUTION FROM SHIPS
Summary
The document assesses the environmental and health impacts of shipping emissions, noting that they are significantly less regulated than land-based sources. It provides data on global and regional emission inventories, specifically for Europe and the United States, and compares these to land-based mobile sources. The report details several cost-effective mitigation strategies, including the use of low-sulphur fuel, seawater scrubbing, engine modifications, selective catalytic reduction (SCR), and shore-side electrical power ('cold ironing').
Key insights
- Shipping emissions are significant and projected to grow, with approximately 85% occurring in the northern hemisphere and nearly 70% occurring within 400km of land.
- In European sea areas, shipping emissions of SO2 and NOx are expected to increase by more than 42% and two-thirds respectively by 2020, at which point they will exceed total land-based emissions in EU25 countries.
- Marine diesel engines in the United States emit pollutants at rates far higher than land-based counterparts; new coastal and harbour craft can emit NOx and PM between 2 and 27 times higher than new non-road land-based heavy-duty diesels, while larger ocean-going (C3) ships can be up to 43 times higher for NOx.
- Reducing the sulphur content of marine fuel from an average of 2.7% to 0.5% would reduce SO2 emissions by approximately 80% and PM emissions by about 40%.
- Several NOx reduction technologies are identified as cost-effective, including water/fuel emulsions (reducing NOx by up to 40% or more) and selective catalytic reduction (SCR), which can reduce NOx by 65-99%.
- Shipping emissions contribute to severe human health issues, including premature cardiovascular mortality and lung cancer, and environmental damage such as acidification and eutrophication of coastal ecosystems.
Cite the original document
- APA
- Clean Air Task Force (2005). PREVENTION OF AIR POLLUTION FROM SHIPS. https://cdn.catf.us/wp-content/uploads/2019/11/21093047/MEPC_4-1-FOEI-CATF_shipping_background_paper.pdf
- Chicago
- Clean Air Task Force. PREVENTION OF AIR POLLUTION FROM SHIPS. 2005. https://cdn.catf.us/wp-content/uploads/2019/11/21093047/MEPC_4-1-FOEI-CATF_shipping_background_paper.pdf.
- Wikipedia
- {{cite report |author=Clean Air Task Force |title=PREVENTION OF AIR POLLUTION FROM SHIPS |date=7 April 2005 |url=https://cdn.catf.us/wp-content/uploads/2019/11/21093047/MEPC_4-1-FOEI-CATF_shipping_background_paper.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{cleanairtaskforce2005prevention, author = {{Clean Air Task Force}}, title = {{PREVENTION OF AIR POLLUTION FROM SHIPS}}, institution = {Clean Air Task Force}, year = {2005}, month = apr, url = {https://cdn.catf.us/wp-content/uploads/2019/11/21093047/MEPC_4-1-FOEI-CATF_shipping_background_paper.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }
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