Massive Chemical Fire at Port of Vancouver             5 March 2015 Trichloroisocyanuric acid burning at Port Metro Vancouver. A material safety datasheet for the acid said it is harmful if inhaled, and could cause damage to the kidneys, liver, respiratory, eyes and skin. Port Metro Vancouver chemical fire involves multiple containers. The substance burning at Port Metro Vancouver is a highly reactive chemical called trichloroisocyanuric acid, confirms Vancouver Coastal Health.