Ligeti remained Commissioner until 1999, reviewing the government's compliance with the Environmental Bill of Rights and reporting to an all-party committee of the Ontario legislature. In her annual report of April, 1999, she warned of a public health crisis as a result of high levels of air pollution.
Ligeti's role as Commissioner involved monitoring government adherence to environmental regulations, specifically the Environmental Bill of Rights, and reporting to an all-party legislative committee in Ontario. Her annual report in April 1999 warned about a public health crisis caused by high levels of air pollution.