Murder Mystery set in the Arctic/Antarctica - Fiction

I've been looking for a book I've previously read for a while now, but haven't been able to figure out the title at all. I feel like I read it at least 10 years ago, but it might be a few years closer than that, not sure.

The basic premise of the plot was that there has been a mysterious death at a research station in the Arctic/Antarctica, and I don't remember why the victims were killed, but the method used to kill them was to grind up some moss/lichen/other from under the ice shelves and add it to the talcum powder people were using to put their snow suits on.

I think maybe it killed them by absorbing all the oxygen in their blood?

If anyone can assist me with the title I would greatly appreciate it.

A few more details that I may have remembered:

The moss/lichen/other that was the murder 'weapon' may have been discovered in ice cores rather than from underneath the ice shelves, I'm not sure of that detail.

There were more murders than just the victims in the opening of the book, and I have a feeling one might have occurred when the moss ect (which wasn't suspected at the time) may have gotten into a researchers eye while they were looking at it under a microscope and entered their body that way, killing them.

Some books that have been suggested on another site that aren't it:
Duncan Kyle's 'Whiteout!'
The Casebook of Forensic Detection: How Science Solved 100 of the World's Most Baffling Crimes
"Miss Smilla's Feeling for Snow" by Peter Hoeg