 The 11 September 2009 injunction remained in force in the United Kingdom until it was lifted on the night of .The report contains discussion of various harmful chemicals "likely to be present" in the waste—sodium hydroxide, cobalt phthalocyanine sulfonate, coker naphtha, thiols, sodium alkanethiolate, sodium hydrosulfide, sodium sulfide, dialkyl disulfides, hydrogen sulfide—and notes that some of these "may cause harm at some distance".The report says potential health effects include "burns to the skin, eyes and lungs, vomiting, diarrhea, loss of consciousness and death", and suggests that the high number of reported casualties is "consistent with there having been a significant release of hydrogen sulphide gas".