Month | Samples/month | Frequency of detection (%) | Monthly averages (μg/L) |
---|---|---|---|
Jan-11 | 5 | 80 | 8.00 ± 3.44 |
Feb-11 | 1 | 100 | 10.19 |
Mar-11 | 8 | 88 | 9.63 ± 4.05 |
Apr-11 | 4 | 100 | 6.96 ± 1.18 |
May-11 | 8 | 100 | 9.32 ± 2.85 |
Jun-11 | 9 | 89 | 8.53 ± 2.02 |
Jul-11 | 6 | 33 | 5.89 ± 2.47 |
Aug-11 | 4 | 75 | 10.65 ± 6.35 |
Sep-11 | 2 | 50 | 12.08 ± 1.98 |
Oct-11 | 2 | 100 | 9.42 ± 1.16 |
Nov-11 | 4 | 100 | 10.09 ± 1.34 |
Dec-11 | 3 | 67 | 8.92 ± 2.75 |