| Date | Value |
|---|---|
| Oct 25, 2014 01:40 | 0.00 ppm |
| Oct 22, 2014 02:38 | 0.10 ppm |
| Oct 20, 2014 07:29 | 0.10 ppm |
| Oct 19, 2014 09:27 | 0.30 ppm |
| Oct 17, 2014 06:56 | 0.60 ppm |
| Oct 10, 2014 03:08 | 1 ppm |
| Oct 9, 2014 01:55 | 1 ppm |
| Oct 8, 2014 02:33 | 0.80 ppm |
| Oct 6, 2014 13:06 | 1.5 ppm |
| Oct 5, 2014 01:55 | 0.80 ppm |