Directly next to the funnels on the deck, the numbers rocketed to 144,000 with a peak at 226,000.
This is more than double the average found in central London's Piccadilly Circus, where using the same device, the Dispatches team recorded 38,400 ultra-fine particulates per cubic centimetre.
While the deck is popular with sun-bathers, passengers are likely to be breathing some of these particulates, which are harmful for health and the environment.
'via Blog this'