Contamination | Raw | Processed | Total | P |
Concentration > 0.05 μg/l | 78 (52%) | 3 (8.6%) | 81 (43.8%) | <0.0001 |
0 < Concentration < 0.05 μg/l | 72 (48%) | 3 (8.6%) | 75 (40.5%) |
|
Total | 150 (100%) | 6 (17.1%) | 156(84.3%) |
|