Newport’s treated Sewage Effluent is piped well out to sea (we are told) before discharge.  This picture is one that I took on an extraordinarily cold morning in January 2010.  The air temperature was about -5º.

Mist rising from sea (Jan 2010)

The picture shows mist rising from the sea, possibly centred on the sewage outfall.The mist appears to be the result of warmer water in the bay, and the mist pattern appears to show the warm water drifting towards land.

Could this be caused by the sewage discharge into the bay at this point?

If not, what is the cause?

Brendan Blake.