General cargo ship · Portugal flag · built 2011
ARISTONA: CO₂ emissions 2025
IMO 9536052 MMSI 255801770EU ETS
- CO₂ reported 2025
- 2,547 t
- Fuel burned
- 794 t
- Distance
- 31,985 nm
- Time at sea
- 4,186 h
- Emitted at berth
- 6% of total
- Share of year under way
- 48%
- Gross tonnage
- 2,549
ARISTONA against its type
Built in 2011, it is 4 years newer than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 2,549 gross tonnage it is smaller than 86% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 187 general cargo ships here under the Portugal flag, 6.1% of the 3,081 on the register. The same builder is recorded for 58 other vessels here, 55 of them general cargo ships.
Its 2,547 t of CO₂ for 2025 is close to the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 79.6 kg CO₂, 35% below the type median of 122.2 kg. It logged 4,186 hours at sea against a median of 3,044 hours for its type that year. 5.6% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Of the 8 sister ships listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2025–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 2,547 | 794 | 31,985 | 4,186 | 143 | 79.6 | 30.4 | 55 |
Vessel particulars
- IMO number
- 9536052
- MMSI
- 255801770
- Call sign
- CQOA
- Ship type
- General cargo ship
- Gross tonnage
- 2,549
- Length overall
- 88.6 m
- Beam
- 12.7 m
- Year built
- 2011
- Flag state
- Portugal per EU MRV 2025
- Builder
- Damen Shipyards Bergum
- Port of registry
- Madeira MRV 2025
- Home port
- Madeira
- Technical efficiency (design)
- EEXI (17.3 gCO₂/t·nm)
- Verifier
- Bureau Veritas Certification France, France
- Accreditation
- 3-2047 rev. 4
- Compliance document issued
- 2026-03-31
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 262 of 479 qualifying general cargo ships by EEOI, at the 55th percentile. The dashed line is the type median, 29.4; this vessel reported 30.4.
EEOI divides emissions by transport work, which for this vessel and year was 83,660,315 tonne-miles over 31,985 nautical miles.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 2,586 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.14 t
- Under EU ETS
- 1,955 t, 77% of total
Observed movementsAIS · Norwegian waters
- First seen
- 18 Nov 2025
- Last seen
- 26 Feb 2026
- Days observed
- 9
- Positions
- 754
- Median speed
- 8.6 kn
Its recorded positions span 58.0°N to 59.7°N and 6.0°E to 10.7°E.
138 hourly points from 754 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2025–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 1 MRV reporting year, an efficiency ranking, 5 of 5 vessel particulars, AIS movements in Norwegian waters and a licensed photograph. Not found in the sources for this vessel: a name history, 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.