1.2 Pollutants of interest
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.729 – Design Guidelines and Operational Recommendations for Ventilation Systems in Ro-Ro Cargo Spaces – (Adopted on 4 July 1996) - Part 1 - Design Guidelines and Operational Recommendations for Ventilation Systems in Ro-Ro Cargo Spaces - 1 Requirements - 1.2 Pollutants of interest

1.2 Pollutants of interest

 The exhaust gases generated by internal combustion engines contain hundreds of chemical substances. The main part of them are nitrogen (N2), carbon dioxide (CO2), oxygen (O2), carbon monoxide (CO), nitric oxide (NO), nitrogen dioxide (NO2) aldehydes such as formaldehyde, polyaromatic hydrocarbons such as benzo(a)pyrene and organic and particulate bound lead.

Among the pollutants emitted in the exhaust gases of petrol and diesel engines, CO is generally of the most significant concern for petrol engines and NOx for diesel engines. Lead and benzo(a)pyrene are also of a significant concern.

Knowledge of the effects of other pollutants to the health is at present insufficient. However, considerable research is being undertaken.

Monitoring of occupational hygiene should be planned and its results should be assessed by a qualified expert, with special training in this field. The studies should be carried out in co-operation with the monitoring staff, the management of the ship concerned and the relevant Administrations.

Parent topic: 1 Requirements
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