Editing Tour Montparnasse (section)

==Asbestos contamination==
In 2005, studies showed that the tower contained [[asbestos]] material. When inhaled, for instance during repairs, asbestos is a [[carcinogen]]. Monitoring revealed that legal limits of fibres per litre were surpassed and, on at least one occasion, reached 20 times the legal limit. Due to health and legal concerns, some tenants abandoned their offices in the building.<ref>{{Cite news |url=https://www.irishtimes.com/news/world/europe/tour-montparnasse-contaminated-with-asbestos-1.1628848 |title=Tour Montparnasse contaminated with asbestos |last=Marlowe |first=Lara |newspaper=The Irish Times |language=en |access-date=6 March 2020}}</ref>

Removal of the asbestos was originally expected to take three years.{{citation needed|date=January 2024}} After a nearly three-year delay, removal began in 2009 alongside regular operation of the building. In 2012, it was reported the tower was 90% free of asbestos.<ref>{{cite web |url=https://osha.europa.eu/en/publications/worksite-setup-during-asbestos-removal-work-montparnasse-tower |title=Worksite Setup During Asbestos Removal Work on the Montparnasse Tower |website=osha.europa.eu |access-date=6 March 2020}}</ref>