Phytoremediation Capacity of Brassica juncea for PFAS-Contaminated Soils
Thompson K, Zhao L, Petersen D
Phytoremediation
PFAS chemicals — found in nonstick pans, firefighting foam, and food packaging — have quietly contaminated farmland and drinking water sources near you, and this research shows that a common garden plant could help clean that soil without bulldozers or toxic chemicals.
Scientists found that Indian mustard, a plant related to the mustard you put on your sandwich, can absorb a harmful 'forever chemical' from polluted soil and store it in its leaves. By growing and harvesting two rounds of the plant, they removed almost all of the chemical from the soil. The plant pulls the toxin up from the roots and concentrates it in the parts above ground, making it easy to remove just by cutting and disposing of the plant.
Key Findings
Indian mustard removed 73% of PFOS from contaminated soil in a single 90-day greenhouse trial
The plant concentrated the chemical in its shoot tissue at 12.4 times the soil concentration, making harvest-based removal practical
Two sequential planting cycles achieved 94% total PFOS removal from the soil
chevron_right Technical Summary
Indian mustard plants can pull a toxic industrial chemical called PFOS out of contaminated soil with high efficiency — removing 73% in a single growing cycle and up to 94% with two sequential plantings. This points to a low-cost, plant-based cleanup strategy for one of the most persistent pollutants on earth.
Abstract Preview
Indian mustard demonstrated 73% PFOS removal from contaminated soil over 90 days in greenhouse trials. Accumulation was concentrated in shoot tissue (bioconcentration factor 12.4), suggesting harve...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
Was this useful?
Urban Tree Canopy Reduces Heat-Related Mortality by 39% in European Cities
Trees in your local park or street aren't just pretty — they are literally keeping people alive during heatwaves, and planting even a modest number of the ri...
Brassica juncea, commonly mustard greens, brown mustard, Chinese mustard, Indian mustard, Japanese mustard, Korean green mustard, leaf mustard, Oriental mustard and vegetable mustard, is a species of mustard plant.