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Maritime Solution

We help authorities monitor compliance through airborne surveillance of individual ship emissions.

Advancing sustainable maritime operations

Pioneering maritime emissions monitoring, Explicit enables authorities to verify compliance with MARPOL Annex VI regulations and the EU Sulphur Directive (2016/802) through advanced airborne surveillance of individual vessel emissions.

 
By providing accurate, real-time emissions data, the solution supports the effective enforcement of key environmental regulations and contributes to more sustainable maritime operations.

Sulphur

Based on the SO2/CO2 ratio in the exhaust gas, the system can determine the sulphur content (% m/m) in the fuel being burned using emission factors prescribed by MEPC.
  • ECA limit: 0.10 % FSC
  • Global cap: 0.50 % FSC

NOx emissions

Based on the NOx/CO2 ratio in the exhaust gas and other parameters, the system is able to identify possible NOx outliers under IMO’s NOx Technical Code Tier I-III.

  • Estimated average NO2 in g/kWh
  • Tier III NTE threshold compliance
  • Tier I-II outlier identification

Methane slip

Using high-sensitivity laser spectrometry, Explicit is also able to detect possible methane leakage issues from LNG vessels during at-sea operations.

  • CH4 concentration mapping (ppb)
  • Stand-alone sensor package

From exhaust gas to emissions result

By combining sensors, software, and lab services into one integrated solution, Explicit provides a full-service option for monitoring individual ship emissions.

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Smart flight

Software tools to guide pilots in navigating the plume using sensor, weather, and AIS data to determine the best possible sampling position.

Mini sniffers

Pre-calibrated, easy-to-replace units comprising SO2, CO2, NO, NOx, temperature and humidity sensors. Calibrated according to ISO standard 6145-1.

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Emissions Lab (E-Lab)

Advanced cloud-based central emissions analysis, quality control and data storage services. Access to emissions expert support.

Reporting

Online reporting with detailed emissions reports on all vessels, maps, and statistics tools for compliance analytics across datasets.

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Mini Sniffer in action

Explicit’s Mini Sniffer System can be used on both crewed and uncrewed aircraft and in multiple locations to conduct airborne surveillance of maritime emissions.

Click the button below to see how it works.

EMSA RPAS programme for maritime air emissions monitoring and vessel compliance surveillance

The EMSA RPAS programme

Since 2018, Explicit has been delivering key emissions monitoring capabilities to the European Maritime Safety Agency (EMSA) as part of its RPAS operations programme.

Managed and piloted by operating partners, Explicit delivers key sensor technology, emissions analysis expertise, and data provision to the operations. The RPAS are deployed in various locations in European waters. 

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