CSEMP assessment of CB153 in biota at Amble
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 79.81 | 82.06 | -36.91 | 73.81 | | | |
| linear | 2 | 79.65 | 84.22 | -35.83 | 71.65 | 2.160 | 1 | 0.1417 |
| smooth (df = 2) | 3 | 79.78 | 88.11 | -34.89 | 69.78 | 1.875 | 1 | 0.1709 |
| smooth (df = 3) | 4 | 81.54 | 95.94 | -34.77 | 69.54 | 0.233 | 1 | 0.6292 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 2.7494 | 2.3091 | -0.4403 | 0.2853 | -1.543 | 0.1572 |
| last 20 years | 1999 | 2017 | 2.7494 | 2.3091 | -0.4403 | 0.2853 | -1.543 | 0.1572 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 10.07 | 0.10 | -4.612 | 0.167 | -27.672 | 1.0000 |
| EAC | 10.07 | 310.66 | 3.430 | 0.167 | 20.579 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
