Some residents in the southern Yukon village of Teslin say they don't understand why the community library remains open in a building that's contaminated with black mould.

The local post office and TD Canada Trust branch moved out of the library building this fall, but town librarian Claudia Hubert said she's been told she'll be staying in the mould-infested building until at least March.

"I have headaches every time when I'm here for a whole day," Hubert told CBC News. "I can feel it."

Past tenants in the building, which is owned by the Village of Teslin, have long complained of headaches and fatigue when they were inside.

"I would have headaches, water eyes; my nose would run," said Joanne Brown, who ran the post office there for eight years.

Brown said her health began to be affected three years ago by mould in the basement, adding that she felt "very lethargic" and had difficulty breathing.

She raised the issue with Canada Post, and environmental testing was done on the building in September 2007.

A month later, the village sent the post office, bank and library a letter stating that they had one year to find a new location. The bank moved out in September, and the post office moved in mid-October.

But Brown said she cannot believe the Yukon government's libraries branch would leave Hubert in the mouldy building.

"I'm basically still in shock over the fact that she still has to be in there, considering that we had 13 months; they gave us 13 months' notice," Brown said.

"And that was not enough for [Yukon] Libraries and Archives to get their ducks in a row and get somebody moved out of a place that has been deemed unsafe."

Teslin Mayor Robin Smarch has refused to comment on the issue. The Yukon government did not return calls by CBC News on the matter this week.

Hubert said no one has told her anything about the building's current condition, but she's been told she'll be staying in there until March.

"I don't know what they're doing, which repairs they are doing, and what the plan is," she said. "I just know that I'm staying here for another five months."