Gearbulk ESG Report 2023 - Report - Page 23
ESG REPORT 2023
OTHER SIGNIFICANT AIR EMSISIONS
SULPHUR & NITROUS OXIDES
Combustion of fossil fuels onboard vessels produces Sulphur
SOx emissions are mainly due to the presence of sulphur
Oxides (SOx) and Nitrogen Oxides (NOx), in addition to Carbon
compound in fuel. However, stricter regulations are coming
dioxides, soot and water. NOx and SOX are considered green-
into force, ensuring a global sulphur cap. Among them, the
house gases (GHG) and can have an adverse e昀昀ect on the
IMO 2020 regulation (MARPOL Annex VI), which entered into
environment. Both NOx and SOx form during combustion
force January 1st 2020, states a maximum of 0.5% sulphur
and are emitted into the environment in the form of smoke.
limit, as well as emission-controlled areas (ECA) ensuring a
maximum of 0.1% sulphur limit. Consequently, SOx emission
The level of NOx emissions from a vessel depends on the
has decreased dramatically.
engine design, operating pro昀椀le, and quality of fuels. However,
whereas modern engines generally generate less NOx, older
Since 2017, Gearbulk has reduced the SOx emission by 91%
engines generate more.
(from 12,310 to 1,088 tonnes) and our NOx by 51% (from
22,286 to 10,918 tonnes) in 2023.
2022
Change from
Base Year
2023
Change from
Base Year
mt
31,787
-5%
31,423
-6%
mt
1,957
-87%
1,937
-87%
Other air emissions
Unit
NOx
SOx
23
