Sample

Levels before treatment

Levels after treatment

% Removed

W1

37.065 ± 1.6528

0.0113 ± 0.0011

99.969

W2

39.270 ± 0.7837

0.0122 ± 0.0019

99.968

BH

32.980 ± 0.9257

0.0126 ± 0.0011

99.961

SW

87.967 ± 1.2723

0.0256 ± 0.0003

99.970