Here's the wikipedia article on the subject
https://en.wikipedia.org/wiki/NASA_Clean_Air_Study
The focus was air, though, not water. Pothos, listed as 'devil's ivy', beats chinese evergreen by two toxins.
https://en.wikipedia.org/wiki/NASA_Clean_Air_Study
The focus was air, though, not water. Pothos, listed as 'devil's ivy', beats chinese evergreen by two toxins.