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Thursday, July 11, 2013

THE CLEAN AIR ACT. (Summarised)

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The act prohibits the emission os dark smoke from all vessels in U.K. waters, that are navigable by sea going ships.

section 1 States:-

(1)        If dark smoke is emitted on any day, the owner, master or any person
            in charge of the vessel shall be guilty of an offence.

(2)        Emissions must not last longer than the periods specified below.
           
            (a)        Emission of dark smoke from an oil fired boiler, with forced draught
                        fans, for not more than ten minutes aggregate in any two hour
                        period, with not more than four minutes continuous emission.

            (b)        Emission of dark smoke from a compression ignition engine, for not
                        more than ten minutes in any two hour period, with not more than
                        four minutes continuous emission.

            (c)        Emission of dark smoke from any other source, not more than five
                        minutes aggregate in any one hour period.

            (d)       In no case shall black smoke be emitted for more than three minutes
                        aggregate in any half hour period.

NOTE! Black smoke is defined as "As dark or darker than shade four on the
            Ringlemann Chart.

            Dark smoke is defined as shade two on the Ringlemann chart.

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