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Since the release of the initial 1989 study, titled A study of interior landscape plants for indoor air pollution abatement: An Interim Report, [6] further research has been done including a 1993 paper [7] and 1996 book [8] by B. C. Wolverton, the primary researcher on the original NASA study, that listed additional plants and focused on the removal of specific chemicals.
Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. [1] It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronomic techniques to either contain, remove or render toxic environmental contaminants harmless". [2]
roots naturally absorb pollutants, some organic compounds believed to be carcinogenic, ... Plants sprayed with 2,4-D may accumulate lethal doses of nitrates. [25 ...
First, plants that have stable root systems are put in contact with the contamination to get acclimated to the toxins. They absorb contaminants through their root systems and store them in root biomass and/or transport them up into the stems and/or leaves. The plants continue to absorb contaminants until they are harvested.
The plant roots must absorb the heavy metal. The plant must chelate the metal to both protect itself and make the metal more mobile (this can also happen before the metal is absorbed). Chelation is a process by which a metal is surrounded and chemically bonded to an organic compound. The plant moves the chelated metal to a place to safely store ...
Bioswales work to remove pollutants through vegetation and the soil. [3] As the storm water runoff flows through the bioswale, the pollutants are captured and settled by the leaves and stems of the plants. The pollutants then enter the soil where they decompose or can be broken down by bacteria in healthy soil. [4]
Persistent organic pollutants (POPs) ... the plants may absorb it. Then these plants may either be consumed by humans or other animals. These consumers ingest the ...
Prairie plants can absorb pollutants such as heavy metals and excess nutrients from water and soil that might enter into an ecosystem. [ 31 ] In general micro-prairies have been found to have a positive impact on local ecosystems and biodiversity.
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