TonneMiles

Chemical tanker · Italy flag · built 2007

MARY A: CO₂ emissions 2018–2025

IMO 9321433 EU ETS8 reporting years

CO₂ reported 2025
3,678 t
Fuel burned
1,147 t
Time at sea
2,178 h
Emitted at berth
21% of total
Share of year under way
25%
Gross tonnage
5,573

MARY A against its type

Built in 2007, it is 3 years older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 5,573 gross tonnage it is smaller than 96% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 43 chemical tankers here under the Italy flag, 1.8% of the 2,344 on the register. The returns for 2018–2025 all give Catania as port of registry.

Its 3,678 t of CO₂ for 2025 is 33% 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 174.6 kg CO₂, 30% below the type median of 250.2 kg. It logged 2,178 hours at sea against a median of 2,106 hours for its type that year. 21.3% 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 (4,345 t) and the lowest 2024 (3,215 t). 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 3,678 1,147 — 2,178 783 174.6 75.1 not ranked
2024 3,215 1,003 — 1,695 769 197.1 73.6 not ranked
2023 3,315 1,034 — 1,706 936 196.4 68.3 not ranked
2022 3,341 1,042 — 1,749 789 187.0 71.3 not ranked
2021 3,526 1,100 — 1,945 884 175.0 65.7 not ranked
2020 4,296 1,340 — 1,992 1,562 218.4 86.6 not ranked
2019 4,344 1,355 — 3,726 1,227 199.0 83.6 not ranked
2018 4,345 1,358 — 3,480 1,687 270.9 124.0 not ranked

Vessel particulars

IMO number
9321433
Ship type
Chemical tanker
Gross tonnage
5,573
Length overall
113.1 m
Year built
2007
Flag state
Italy per EU MRV 2025
Port of registry
Catania MRV 2025
Technical efficiency (design)
EEXI (14.38 gCO₂/t·nm)
Efficiency ranking
Not ranked: transport work below the floor (2025)
Verifier
RINA Services Spa, Italy
Accreditation
002O
Compliance document issued
2026-03-06
Compliance document expires
2027-06-30

Reported CO₂ by year

2018: 4,345 t20184,3452019: 4,344 t20192020: 4,296 t20202021: 3,526 t20212022: 3,341 t20222023: 3,315 t20232024: 3,215 t20242025: 3,678 t20253,678

Reported CO₂ in 2025 was 15.3% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 14.4% and CO₂ per nautical mile fell 11.4%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.

Where the 2025 emissions occurred

At berthAt berth: 783 t783Within EEA portsWithin EEA ports: 921 t921Voyages between EEA portsVoyages between EEA ports: 734 t734Voyages to an EEA portVoyages to an EEA port: 752 t752Voyages from an EEA portVoyages from an EEA port: 1,272 t1,272

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
3,734 t
Methane (CH₄)
0.06 t
Nitrous oxide (N₂O)
0.21 t
Under EU ETS
2,666 t, 72% of total

Sources and how to read this

This page draws on 8 MRV reporting years and 4 of 5 vessel particulars. Not found in the sources for this vessel: an efficiency ranking, 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.

Comparable vesselsnearest by tonnage, same type