Chemical tanker · Denmark flag · built 2006
MONA SWAN: CO₂ emissions 2018–2025
IMO 9371804 EU ETS8 reporting years
- CO₂ reported 2025
- 3,822 t
- Fuel burned
- 1,192 t
- Distance
- 19,407 nm
- Time at sea
- 1,856 h
- Emitted at berth
- 14% of total
- Share of year under way
- 21%
- Gross tonnage
- 7,232
MONA SWAN against its type
Built in 2006, it is 4 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 7,232 gross tonnage it is smaller than 91% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 93 chemical tankers here under the Denmark flag, 4.0% of the 2,344 on the register. The returns for 2018–2025 all give Middelfart as port of registry.
Its 3,822 t of CO₂ for 2025 is 31% below the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 197.0 kg CO₂, 21% below the type median of 250.2 kg. It logged 1,856 hours at sea against a median of 2,109 hours for its type that year. 13.7% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2018 (5,072 t) and the lowest 2021 (3,190 t). Its efficiency percentile within the type went from 88 in 2018 to 96 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 3,822 | 1,192 | 19,407 | 1,856 | 525 | 197.0 | 45.1 | 96 |
| 2024 | 3,657 | 1,205 | 17,890 | 1,767 | 398 | 204.4 | 51.6 | 96 |
| 2023 | 4,273 | 1,333 | — | 1,241 | 521 | 316.8 | 74.8 | not ranked |
| 2022 | 3,621 | 1,130 | 10,376 | 1,283 | 521 | 349.0 | 54.0 | 98 |
| 2021 | 3,190 | 995 | — | 1,097 | 356 | 259.2 | 71.5 | not ranked |
| 2020 | 3,545 | 1,106 | — | 1,101 | 570 | 285.1 | 76.2 | not ranked |
| 2019 | 4,245 | 1,324 | — | 5,887 | 830 | 242.3 | 59.2 | not ranked |
| 2018 | 5,072 | 1,582 | 28,612 | 6,789 | 530 | 177.3 | 37.0 | 88 |
Vessel particulars
- IMO number
- 9371804
- Ship type
- Chemical tanker
- Gross tonnage
- 7,232
- Length overall
- 129.8 m
- Year built
- 2006
- Flag state
- Denmark per EU MRV 2025
- Port of registry
- Middelfart MRV 2025
- Home port
- Middelfart
- Ice class
- IC
- Technical efficiency (design)
- EIV (15.77 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-26
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,290 of 1,348 qualifying chemical tankers by EEOI, at the 96th percentile. The dashed line is the type median, 14.4; this vessel reported 45.1.
EEOI divides emissions by transport work, which for this vessel and year was 84,753,880 tonne-miles over 19,407 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 24.6% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 4.5% while distance sailed rose 8.5%and CO₂ per nautical mile fell 3.6%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 3,881 t
- Methane (CH₄)
- 0.06 t
- Nitrous oxide (N₂O)
- 0.21 t
- Under EU ETS
- 2,537 t, 66% of total
Laden voyages2025
- CO₂ on laden voyages
- 1,761 t, 46% of total
- Fuel, laden
- 549 t
- CO₂ per nm, laden
- 151.1 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Bureau Veritas Certification France | France |
| 2023 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 8 MRV reporting years, an efficiency ranking and 4 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.