Indoor Air Pollution-Absorbing House Plants
For anyone who feels more groggy, headachy and perhaps slightly irritable in the winter, as a result of breathing the centrally heated stale air in the home during the cold winter months, when we keep doors and windows closed, you may be interested in
indoor air pollution-absorbing house plants, which are a cheap but effective way of reducing indoor air pollution in the home.
One major home indoor air pollutant in
formaldehyde, which causes health problems even in the minutes amounts in the air. Formaldehyde is generated by central heating: the heat causes formaldehyde to be emitted from the paint on the radiators. Plus many other furnishings constantly emit formaldehyde. Formaldehyde is linked to multiple chemical sensitivity.
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Ever since I put a large (3 foot tall) formaldehyde-absorbing house plant in my room, I have never once got that winter central heating groggy feeling anymore — and I used to get this a lot in winter. So the plant seems to be working.
NASA have performed research on
air pollution-absorbing house plants, and details of this research can be found in the following book which lists the best house plants for absorbing indoor air pollution:
How to Grow Fresh Air: 50 House Plants that Purify Your Home or Office, by B. C. Wolverton
Two very useful tables in this book which list the best plants for removing the indoor air pollutants are as follows (from pages 23 and 24 of this book):
Best house plants for removing FORMALDEHYDE from the indoor air:
Best house plants for removing XYLENE and TOLUENE from the indoor air:
In these above tables, you can see that only two plants seem to be able to remove both formaldehyde and xylene/toluene; these are:
Kimberly queen fern (Nephrolepis obliterata) — the problem with any fern, though, is that they need high humidity.
Areca palm (Dypsis lutescens) — this plant can be bought reasonably cheaply, about £20 for a 3 foot plant, and it looks beautiful (see
here). This is the plant that I bought.
In terms of actual figures,
this study by the same author (B.C. Wolverton) says that a kimberly queen fern will remove 1328 mcg of formaldehyde from the air per hour.
Another table of indoor air pollution-absorbing house plants is
this one from Wikipedia (though I think there are some errors in this Wikipedia page).
Areca Palm Plant: Good at Removing Toxins From the Air
If you Google search on:
NASA houseplants formaldehyde, you will find lots of articles on air pollution-removing houseplants. Here are some articles:
Indoor Plants Can Reduce Formaldehyde Levels
This Graphic Shows the Best Air-Cleaning Plants, According to NASA
Top 10 NASA Approved Houseplants for Improving Indoor Air Quality - DIY & Crafts
NASA Clean Air Study - Wikipedia
Remember, the larger the plant and the more leaf area it has, the more toxins it will break down. So a tiny plant that is just 4 inches high won't do much. You will get more toxin removal with a larger plant.
Note that the areca palm does not break down benzene, but I bought it because it is a large, cheap plant that is easy to look after, and good at removing formaldehyde.