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The Best Plants For Removing Indoor Pollution
Common indoor plants may provide a valuable weapon in the fight against rising levels of indoor air pollution. NASA scientists are finding them to be surprisingly useful in absorbing potentially harmful gases and cleaning the air inside homes, indoor public spaces and office buildings.
The indoor pollutants that affect health are formaldehyde, Volatile Organic Compounds (benzene and trichloroethylene or TCE), airborne biological pollutants, carbon monoxide and nitrogen oxides, pesticides and disinfectants (phenols), and radon. These pollutants contribute to ‘sick building syndrome’, which causes symptoms ranging from allergies, headaches and fatigue through to nervous-system disorders, cancer and death.
Through studies conducted by NASA, scientists have identified 50 houseplants that remove many of the pollutants and gases mentioned above. Dr. B. C. Wolverton rated these plants for removing chemical vapors, ease of growth, resistance to insect problems, and transpiration (the amount of water they expire into the air). NASA, with assistance from the Associated Landscape Contractors of America, conducted a two-year study directed by Dr. B.C. Wolverton, an environmental engineer from Picayune, Mr. Wolverton has worked as a research scientist for NASA for some 20 years. His study, in the late ’80s and early ’90s, of the interaction of plants and air found that houseplants, when placed in sealed chambers in the presence of specific chemicals, removed those chemicals from the chambers.
More information on this study as well as references and details on specific chemicals can be found on Dr. Wolverton’s website.
Dr. B.C. Wolverton, researcher and author of “How to Grow Fresh Air – 50 Houseplants that Purify Your Home or Office”, conducted plant studies for NASA that determined that plants can clean pollutants in homes, offices, factories and retail outlets. Later, Wolverton expanded the study and assigned plants a rating from one to 10, based on a plant’s ability to remove chemical vapors or indoor air toxins, ease of growth and maintenance, resistance to insect infestation and the rate at which water evaporates from the leaves.
Top ten plants for removing formaldehyde, benzene, a
nd carbon monoxide from the air:
1. Alreca Palm (Chrysalidocarpus lutescens)
Also called the “Butterfly Palm”. An upright houseplant that is somewhat vase shaped. Specimen plants can reach 10 to 12 foot in height. Prefers a humid area to avoid tip damage. Requires pruning. When selecting an Areca palm look for plants with larger caliber trunks at the base of the plant. Plants that have pencil thin stems tend to topple over and are quite difficult to maintain.
2. Lady Palm (Rhapis excelsa)
Also called the “Lady Palm”, this durable palm species adapts well to most interiors. The Rhapis are some of the easiest palms
to grow, but each species has its own particular environment and culture requirements. The “Lady Palm” grows slowly, but can grow to more than 14′ in height with broad clumps often having a diameter as wide as their height.
3. Bamboo palm (Chamaedorea seifrizii)
Also called the “reed palm”, this palm prefers bright indirect light. New plants will lose of some interior foliage as they acclimate to indoor settings. This plant likes to stay uniformly moist, but does not like to be over-watered or to sit in standing water. Indoor palms may attract spider mites which can be controlled by spraying with a soapy solution. They can get as tall as 12 Feet, so make sure to have a tall ceiling! It removes carcinogenics such as benzene, formaldehyde, trichloroethylene.
4. Rubber Plant (Ficus robusta)
Grows very well indoors, preferring semi-sun lighting. Avoid direct sunlight, especially in summer. Young plants may need to be supported by a stake. The Ficus grows to 8’ with a spread of 5’. Wear gloves when pruning, as the milky sap may irritate the skin. Water thoroughly when in active growth, then allow the soil to become fairly dry before watering again. In winter keep slightly moist. This plant is native to South East Asia. It doesn’t need much water, or sunlight, and removes benzene, formaldehyde, and trichloroethylene.
5. Dracaena “Janet Craig” (Dracaena deremensis)
The Dracaena grows to 10’ with a spread of 3’. Easy to grow, these plants do best in bright indirect sunlight coming from the east/west. They can adapt to lower light levels if the watering is reduced. Keep the soil evenly moist and mist frequently with warm water. Remove any dead leaves. Leaf tips will go brown if the plant is under watered but this browning may be trimmed.
6. Philodendron (Philodendron sp.)
One of the most durable of all house plants. Philodendrons prefer medium intensity light but will tolerate low light. Direct sun will burn the leaves and stunt plant growth. This plant is available in climbing and non-climbing varieties. When grown indoors, they need to be misted regularly and the leaves kept free of dust. Soil should be evenly moist, but allowed to dry between watering.
7. Dwarf Date Palm (Phoenix roebelenii)
A hardy, drought-tolerant and long-lived plant, the Dwarf Date Palm needs a bright spot which is free of drafts. It grows slowly, reaching heights of 8-10’. The Dwarf Date Palm should not be placed near children’s play areas because it has sharp needle-like spines arranged near the base of the leaf stem. These can easily penetrate skin and even protective clothing.
8. Ficus Alii (Ficus macleilandii “Alii”)
The Ficus Alii grows easily indoors, and resists insects. It prefers a humid environment and low to medium light when grown indoors. The Ficus Aliii should not be placed near heating or air conditioning vents, or near drafts because this could cause leaf loss. Soil should be kept moist but allowed to dry between watering.
9. Boston Fern (Nephrolepis exaltata “Bostoniensis”)
The Boston fern grows to 4’ in height with a spread up to 5’. It has feathery ferns which are best displayed as a hanging plant. It prefers bright indirect sunlight. Keep the soil barely moist and mist frequently with warm water. This plant is prone to spider mites and whitefly which can be controlled using a soapy water spray. Inspect new plants for bugs before bringing them home. It removes carcinogenics such as formaldehyde and xylene.
10. Peace Lily (Spathiphyllum “Mauna Loa”)
The Peace Lily is a compact plant which grows to a height of 3’ with a 2’ spread. This hardy plant tolerates neglect. It prefers indirect sunlight and high humidity, but needs to be placed out of drafts. For best results, the Peace Lily should be thoroughly watered, then allowed to go moderately dry between waterings. The leaves should be misted frequently with warm water. It removes carcinogenics such as ammonia, benzene, formaldehyde, and trichloroethylene.
11. Garden Mum
In the NASA research, this plant was an air-purifying champion, removing ammonia, benzene, formaldehyde, and xylene from indoor air. Popular and inexpensive at garden stores, they can be planted outside after they’re finished blooming. It is best at removing ammonia, benzene, formaldehyde, and xylene.
12. Spider Plant
Spider plants are among the easiest houseplants to grow, making them a great choice for beginners or forgetful owners. A fan of bright, indirect sunlight, spider plants will send out shoots with flowers that eventually grow into baby spider plants or spiderettes. They remove the carcinogenics formaldehyde and xylene.
13. Aloe Vera
In addition to being easy to care for, aloe makes some serious health claims. The plant’s leaves contain a clear liquid full of vitamins, enzymes, amino acids, and other compounds that have wound-healing, antibacterial, and anti-inflammatory properties, and there is some evidence that aloe may help (and is unlikely to hurt) skin conditions like psoriasis. Aloe Vera is proven to remove formaldehyde from surrounding areas.
References:
How to Grow Fresh Air: 50 House Plants that Purify Your Home or Office (Penguin; First Edition edition April 1, 1997).
Wolverton Environmental Services (http://www.wolvertonenvironmental.com/air.htm), Last updated May 2009.
Dr. B.C.Wolverton’s book is available online: “How to Grow Fresh Air – 50 Houseplants that Purify Your Home or Office”.
For more information on non-toxic home cleaning read the guide here.
For information on non-toxic pest control read the guide here.
Browse hundreds of environmentally friendly products in our store here.
This article was borrowed from the amazing authors at Greatist.com and Learn.EarthEasy.com.
http://greatist.com/connect/houseplants-that-clean-air
http://learn.eartheasy.com/2009/05/the-top-10-plants-for-removing-indoor-toxins/
How to Stop Everything from Getting Dusty
The answer is simple: buy and use electrostatic (microfiber) cloth!
There are many reasons why dust collects on our things. First of all, most people own more things than they actually use daily. That’s because we have invested our time or money into material things, which then seem to lose their use, or are sometimes replaced. We then convince ourselves that we will later find time to sell, get rid of, or make use of it… which rarely is more important than things you’ve purchased more recently. This, can be seen as hoarding.
Dust is more rampant in dusty areas. Therefore, if you often keep windows or doors open, and you live in a dusty area, the invisible dust particles will creep into your home and lodge themselves on your belongings. To stop this from happening, limit the amount of time you leave your windows and doors open, and perhaps use the fan on your air conditioner or another ventilation system to keep circulating air indoors.
If you use your A/C a lot, and have not had it maintained in a long time, you should call a repairman to take a look at the filter and perhaps change it. If you have no pets or allergies, you should change your A/C filter every 6-12 months. If you have a pet or allergies, you should change/clean your A/C filter every 20-60 days.
When sweeping, keep the broom at a 45-degree angle from the floor. Don’t sweep everything swiftly, letting the broom stay perpendicular or upright. Doing this will cause all the dust to go into the air and spread. It will also only come down out of the air slowly and spread onto other material belongings.
Here are 6 tips to living in a dust free environment.
1. Sell your material things, or simply own less.
2. Keep windows and doors closed, but don’t forget to circulate the air in your living space.
3. Keep dusty things (shoes, bikes, furry jackets, or old fabric) out of your living space. To clean, use electrostatic cloth that attract dust particles.
4. Use electrostatic cloth instead of a duster! They collect the dust instead of spread it.
5. When sweeping, don’t rush!
6. Get a high quality HEPA air purifier that removes the dust from the air you live in. We would suggest the Xiaomi 2S for around $130.