Table 1.
Chemical | Analytical results (n) | Left‐censored (n) (a) | Quantified (n) | Left‐censored (%) | Quantified (%) |
---|---|---|---|---|---|
Chlorates | 200 | 127 | 73 | 63.5 | 36.5 |
SUM BAC | 422 | 397 | 25 | 94.1 | 5.9 |
SUM DDAC | 416 | 392 | 24 | 94.2 | 5.8 |
The number of left‐censored data refers to both the results below the LOQ and those below the LOD. For those analytical results that were reported below the LOD, the LB, MB and UB were assigned as LB = 0, MB = LOD/2 and UB = LOD. For the ones below the LOQ, the same approach was taken, using the value of the LOQ (LB = 0, MB LOQ/2, UB = LOQ).