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Environmental Sciences Europe

Table 2 Rate constants (k), coefficients of determination (R2) and half-lives (t½) for the dissipation of PTA in different Humleore soil horizons at two different moisture contents (10 °C)

From: Bracken growth, toxin production and transfer from plant to soil: a 2-year monitoring study

Hor

k (h−1) × 10–2

R2

t½ (h)

pF 1

pF 2

pF 1

pF 2

pF 1

pF 2

A1

13.1 ± 0.79

20.8 ± 1.24

0.993

0.990

5.3 ± 0.32

3.3 ± 0.2

A2

1.6 ± 0.08

2.5 ± 0.14

0.989

0.987

43.6 ± 2.2

28.1 ± 1.6

AE

1.0 ± 0.07

1.1 ± 0.11

0.970

0.938

73.0 ± 5.3

65.4 ± 6.8

  1. Rates and half-lives are expressed as value ± standard error of the regression equation
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