Chemical tanker · Malta flag
BLUE BIRD: CO₂ emissions 2018–2025
IMO 9527764 EU ETS5 reporting years
- CO₂ reported 2025
- 7,445 t
- Fuel burned
- 2,339 t
- Distance
- 35,681 nm
- Time at sea
- 3,922 h
- Emitted at berth
- 7% of total
- Share of year under way
- 45%
- Gross tonnage
- 7,386
BLUE BIRD against its type
At 7,386 gross tonnage it is smaller than 90% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 218 chemical tankers here under the Malta flag, 9.3% of the 2,344 on the register. Its MRV returns name it BLUE STAR for 2018–2019 and BLUE BIRD for 2023–2025. The reported port of registry changed: Valetta (2018), then Valletta (2019), then Valetta (2023–2025).
Its 7,445 t of CO₂ for 2025 is 35% above the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 208.6 kg CO₂, 17% below the type median of 250.2 kg. It logged 3,922 hours at sea against a median of 2,109 hours for its type that year. 6.8% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 5 years with reported emissions, the highest was 2018 (14,811 t) and the lowest 2023 (4,089 t). Its efficiency percentile within the type went from 98 in 2018 to 0 in 2025 (lower is more efficient). Of the 7 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 | 7,445 | 2,339 | 35,681 | 3,922 | 506 | 208.6 | 1.5 | 0 |
| 2024 | 5,595 | 1,778 | 29,912 | 3,195 | 258 | 187.1 | 42.0 | 92 |
| 2023 | 4,089 | 1,301 | 20,710 | 2,202 | 231 | 197.5 | 40.2 | 91 |
| 2019 | 11,571 | 3,674 | 40,420 | 4,901 | 2,572 | 286.3 | 58.1 | 98 |
| 2018 | 14,811 | 4,708 | 50,556 | 7,502 | 1,093 | 293.0 | 55.3 | 98 |
Vessel particulars
- IMO number
- 9527764
- Previously reported as
- BLUE STAR
- Ship type
- Chemical tanker
- Gross tonnage
- 7,386
- Length overall
- 128.1 m
- Beam
- 19.5 m
- Flag state
- Malta per EU MRV 2025
- Port of registry
- Valetta MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (12.7 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-04-02
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 2 of 1,348 qualifying chemical tankers by EEOI, at the 0th percentile. The dashed line is the type median, 14.4; this vessel reported 1.5.
EEOI divides emissions by transport work, which for this vessel and year was 4,963,040,000 tonne-miles over 35,681 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 49.7% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, 2022, so the series has gaps.
From 2024 to 2025, emissions rose 33.1% while distance sailed rose 19.3%and CO₂ per nautical mile rose 11.5%.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
- 7,559 t
- Methane (CH₄)
- 0.12 t
- Nitrous oxide (N₂O)
- 0.42 t
- Under EU ETS
- 5,578 t, 75% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2023 | Bureau Veritas Certification France | France |
| 2024 | NORMEC VERIFAVIA SAS | 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 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 5 MRV reporting years, an efficiency ranking, 3 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.