Tl

Thallium

Hyperaccumulation threshold: 100 µg g⁻¹ [ref] Tracked

Thallium is exceptionally toxic, and a handful of Brassicaceae, notably Biscutella laevigata and Iberis intermedia on mineralised soils, hyperaccumulate it. The group is small but significant for the phytoextraction of one of the most toxic heavy metals.

7 species recorded in this database; highest cited value 79,200 µg g⁻¹.

Metal Region Uptake Verify
Biscutella laevigatabuckler mustard Brassicaceae Tl Thallium 19,400 194× Europe (Alps and mineralised districts) Obligate primary
Brassica oleraceakale (var. acephala) Brassicaceae Tl Thallium 6,280 62.8× Cultivated (experimental) Facultative primary
Iberis intermediacandytuft Brassicaceae Tl Thallium 4,000 40× Southern France Facultative primary
Silene latifoliawhite campion Caryophyllaceae Tl Thallium 79,200 792× Italy, North Macedonia (Allchar) Facultative primary
Viola allchariensis Violaceae Tl Thallium 23,100 231× North Macedonia (Allchar) Facultative primary
Viola arsenica Violaceae Tl Thallium 58,900 589× North Macedonia (Allchar) Facultative primary
Viola tricolor subsp. macedonica Violaceae Tl Thallium 10,800 108× North Macedonia (Allchar) Facultative primary

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