Sample

Levels before treatment

Levels after treatment

% Removed

W1

47.2555 ± 1.7547

0.01417 ± 0.0005

99.969

W2

64.4483 ± 1.3821

0.0128 ± 0.0002

99.979

BH

32.1572 ± 4.5833

0.0115 ± 0.0005

99.963