And speaking of Damien Hirst:
“One of Hirst’s main subjects is the setting-up of giant fish tanks filled by thousands of liters of FA, in which intact biological specimens are immersed, such as zebras, cows, calves, even sharks,” the abstract of the article said, referring to formaldehyde fumes. “It has been found that the tanks are surrounded by FA fumes, constantly exuded in the atmosphere (likely via the sealant), reaching levels of 5 ppm, one order of magnitude higher than the 0.5 ppm limit set up by legislation.”
In other words, some people are concerned that a tank full of formaldehyde with a dead shark in it may be leaking formaldehyde fumes. Shocked, shocked I am.
The museum also provided a statement from Pier Giorgio Righetti, a professor at Politecnico di Milano university in Italy and an author of the paper, saying that the research “was intended to test the uses of a new sensor for measuring formaldehyde fumes, and we do not believe that our findings suggest any risk for visitors at Tate Modern.”