The Nation reported that butyl acrylate escaped from a box on the 1,708-teu Pearl River Bridge (built 2008) at Laem Chabang.
Local governor Komsan Ekachai said the ship was ordered to move 10 kilometres away from the coast to minimise the impact.
The box sprang a leak when it fell during unloading.
Odour from the chemical spread to communities in Sri Racha district, with some residents developing nausea, nose irritation and other symptoms.
Some
