Roads were closed and people warned to stay indoors after a gas cloud was accidentally released on Gravesend Pier on Friday (April 17).
Emergency crews were called at around 5pm to deal with the irritant cloud of gas, which was caused by a chemical used in expanding filler foam.
Nearby residents were told to keep windows and doors shut until 11pm and motorists asked to avoid the area.
Kent Fire and Rescue said the gas could cause breathing problems or irritate the eyes but was more likely to affect those with pre-existing conditions.
Photo: Kelly Osborne
It said the gas, caused by a substance called MDI isocyanate, was not harmful but anyone who felt unwell should seek medical advice.
Contractors were using filler foam to repair a floatation tank on a pontoon on the pier, which caused the chemical reaction behind the gas cloud.
Roads reopened and cordons were lifted at around 9pm.
Photo: @DuffMeister1965
The fire service said the chemical smell was likely to remain in the air for several days but it was not harmful.
Kent Police supported the fire crews and assisted with traffic.
Were you affected by this incident? Call the news desk on 01689 885726 or e-mail harriet.collier@london.newsquest.co.uk
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