Chemical tanker · Marshall Islands flag · built 2008
ATLANTIC AQUARIUS: CO₂ emissions 2018–2025
IMO 9381756 EU ETS5 reporting years
- CO₂ reported 2025
- 2,672 t
- Fuel burned
- 854 t
- Distance
- 8,530 nm
- Time at sea
- 848 h
- Emitted at berth
- 3% of total
- Share of year under way
- 10%
- Gross tonnage
- 29,266
ATLANTIC AQUARIUS against its type
Built in 2008, it is 2 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,266 gross tonnage it is larger than 69% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 474 chemical tankers here under the Marshall Islands flag, 20.2% of the 2,344 on the register. The same builder is recorded for 983 other vessels here, 330 of them chemical tankers. Its MRV returns name it ATLANTIC AQUARIUS for 2018 and VELOS AQUARIUS for 2020–2025. The reported port of registry changed: Hong Kong (2018), then Majuro (2020–2025).
Its 2,672 t of CO₂ for 2025 is 52% below the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 313.3 kg CO₂, 25% above the type median of 250.2 kg. It logged 848 hours at sea against a median of 2,106 hours for its type that year. 2.7% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 5 years with reported emissions, the highest was 2020 (3,295 t) and the lowest 2023 (992 t). Its efficiency percentile within the type went from 4 in 2018 to 58 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 1 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 | 2,672 | 854 | 8,530 | 848 | 73 | 313.3 | 16.3 | 58 |
| 2024 | 2,845 | 897 | 7,739 | 747 | 663 | 367.6 | 13.9 | 42 |
| 2023 | 992 | 315 | 5,160 | 579 | 254 | 192.3 | 8.4 | 8 |
| 2020 | 3,295 | 1,054 | 9,755 | 866 | 278 | 337.8 | 9.3 | 11 |
| 2018 | 3,220 | 1,032 | 10,098 | 911 | 37 | 318.8 | 8.1 | 4 |
Vessel particulars
- IMO number
- 9381756
- Previously reported as
- VELOS AQUARIUS
- Ship type
- Chemical tanker
- Gross tonnage
- 29,266
- Length overall
- 183.2 m
- Beam
- 32.2 m
- Year built
- 2008
- Flag state
- Marshall Islands per EU MRV 2025
- Builder
- HD Hyundai Mipo
- Port of registry
- Majuro MRV 2025
- Home port
- Majuro
- Technical efficiency (design)
- EEXI (5.11 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-06-12
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 780 of 1,348 qualifying chemical tankers by EEOI, at the 58th percentile. The dashed line is the type median, 14.4; this vessel reported 16.3.
EEOI divides emissions by transport work, which for this vessel and year was 163,641,764 tonne-miles over 8,530 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 17.0% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2021, 2022, so the series has gaps.
From 2024 to 2025, emissions fell 6.1% while distance sailed rose 10.2%and CO₂ per nautical mile fell 14.8%.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 2,714 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.15 t
- Under EU ETS
- 1,373 t, 51% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Korean Register | Korea, Republic of |
| 2023 | RINA HELLAS 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 5 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.