Reducing maritime emissions with continuous emission monitoring systems

Page date: Published 8 Nov 2024; updated 25 Mar 2026. 3 min read.

The article describes continuous emission monitoring systems (CEMS) as automated equipment that measures gases and particulate emissions from a source and sends real-time readings to operators. A data acquisition system processes and stores the raw readings in standardized formats for regulatory reporting, trend analysis and compliance; alerts can be generated when thresholds are exceeded.

The page presents real-time visibility, reporting support, more precise data and operational adjustment as CEMS benefits. It says maritime decarbonization options include electrification and lower-carbon fuels such as hydrogen, and frames monitoring as a way to track emissions and support regulatory compliance.

The article cites the IMO’s 2023 greenhouse-gas strategy, a target to reduce carbon intensity by at least 40% by 2030 relative to 2008, and annual ship energy-efficiency monitoring/reporting requirements beginning in 2023. It also mentions a scheduled review date of 1 Jan 2026; these regulatory statements and dates are reproduced as the page described them, and readers should consult current IMO rules. Related links: Maritime; IMO strategy; Norwegian CEMS provider Tunable; maritime hydrogen article.