Water property

P

Rainwater

Groundwater

Wastewater

pH

<0.01

7.22c^†

7.89b

9.77a

Electrical conductivity (dS∙m⁻¹)

<0.01

14.8c

461b

578a

P (mg∙kg⁻¹)

<0.01

0.14b

0.01c

1.25a

K (mg∙kg⁻¹)

<0.01

0.41c

1.17b

20.2a

Ca (mg∙kg⁻¹)

<0.01

0.37c

77.9a

27.2b

Mg (mg∙kg⁻¹)

<0.01

<0.01c

1.05b

35.6a

S (mg∙kg⁻¹)

<0.01

0.16c

0.92b

12.1a

Na (mg∙kg⁻¹)

<0.01

0.41c

13.2b

35.8a

Fe (mg∙kg⁻¹)

0.38

0.18a

0.15a

0.19a

Mn (mg∙kg⁻¹)

<0.01

<0.01b

<0.01b

<0.01a

Zn (mg∙kg⁻¹)

<0.01

0.06b

0.11a

0.05c

Cu (mg∙kg⁻¹)

<0.01

<0.01b

<0.01b

<0.01a

NO₃ + NO₂ (mg∙kg⁻¹)

<0.01

<0.01c

5.79a

3.05b

NH₄ (mg∙kg⁻¹)

<0.01

0.27b

0.03c

7.83a

Soluble-reactive P (mg∙kg⁻¹)

<0.01

0.05b

<0.01c

1.17a