Chemical tanker · Liberia flag · built 2008
CITRUS: CO₂ emissions 2019–2025
IMO 9380374 EU ETS6 reporting years
- CO₂ reported 2025
- 8,687 t
- Fuel burned
- 2,761 t
- Distance
- 20,849 nm
- Time at sea
- 1,824 h
- Emitted at berth
- 6% of total
- Share of year under way
- 21%
- Gross tonnage
- 29,295
CITRUS 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 29,295 gross tonnage it is larger than 71% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 402 chemical tankers here under the Liberia flag, 17.2% 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 CITRUS for 2019–2020, RIDGEBURY MERCURY for 2021 and SEA LA BELLE for 2023–2025. The reported port of registry changed: Majuro (2019–2021), then Monrovia (2023–2025).
Its 8,687 t of CO₂ for 2025 is 1.6 times the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 416.7 kg CO₂, 1.7 times the type median of 250.2 kg. It logged 1,824 hours at sea against a median of 2,106 hours for its type that year. 6.3% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 6 years with reported emissions, the highest was 2025 (8,687 t) and the lowest 2024 (1,452 t). Its efficiency percentile within the type went from 35 in 2019 to 57 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 3 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 8,687 | 2,761 | 20,849 | 1,824 | 545 | 416.7 | 16.0 | 57 |
| 2024 | 1,452 | 458 | 5,203 | 320 | 111 | 279.0 | 9.0 | 14 |
| 2023 | 1,829 | 583 | 5,587 | 424 | 170 | 327.3 | 29.0 | 81 |
| 2021 | 4,332 | 1,376 | 13,231 | 1,239 | 688 | 327.4 | 13.8 | 37 |
| 2020 | 2,385 | 757 | 7,103 | 556 | 0 | 335.8 | 11.2 | 21 |
| 2019 | 2,024 | 649 | 6,814 | 801 | 117 | 297.0 | 13.9 | 35 |
Vessel particulars
- IMO number
- 9380374
- Previously reported as
- RIDGEBURY MERCURY, SEA LA BELLE
- Ship type
- Chemical tanker
- Gross tonnage
- 29,295
- Length overall
- 183.0 m
- Beam
- 32.2 m
- Year built
- 2008
- Flag state
- Liberia per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Marshall Islands. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- HD Hyundai Mipo
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (4.97 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 763 of 1,348 qualifying chemical tankers by EEOI, at the 57th percentile. The dashed line is the type median, 14.4; this vessel reported 16.0.
EEOI divides emissions by transport work, which for this vessel and year was 543,965,560 tonne-miles over 20,849 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 329.3% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2022, so the series has gaps.
From 2024 to 2025, emissions rose 498.4% while distance sailed rose 300.7%and CO₂ per nautical mile rose 49.3%.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
- 8,823 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.50 t
- Under EU ETS
- 4,920 t, 57% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2023 | Bureau Veritas Certification France | France |
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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 6 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.