Aamjiwnaang First Nation evacuations near Sarnia, Ont., begin as Ineos starts removing benzeneBy Sarnia_Man / October 2, 2024 High levels of the chemical benzene were registered in the air near Sarnia, Ont., in April, forcing neighbouring Aamjiwnaang First Nation to declare a state of emergency after people became ill with headaches, nausea and dizziness.