Table 2.
Arsenic in soils from greenhouse treatments and home gardens. Ranges and US back-ground values are provided for comparison.
| Soil type | Arsenic DWa (mg kg−1) |
|---|---|
| MiracleGro™ Soil Mix | 3.63 ± 0.84 |
| T1b | 27.2 ± 0.89 |
| T2c | 222 ± 3.01 |
| T3d | 533 ± 20.4 |
| Home yard soile | 46.0 (3.07–322) |
| Home garden soile | 44.1 (2.35–374) |
| Normal range of arsenic in soils | 0.1–40f |
| Range of arsenic in soils from the US | <0.1–93g |
a
All values are in dry mass, mg kg−1.
b
T1 = greenhouse treatment 1.
c
T2 = greenhouse treatment 2.
d
T3 = greenhouse treatment 3.
e
For home soils, average, N = 25 and (range).