CSEMP assessment of CB153 in biota at South Eddystone
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 0.05 | 3.05 | 2.97 | -5.95 | | | |
| linear | 2 | 1.32 | 7.72 | 3.34 | -6.68 | 0.737 | 1 | 0.3906 |
| smooth (df = 2) | 3 | 3.28 | 15.78 | 3.36 | -6.72 | 0.037 | 1 | 0.8480 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | 2.5473 | 2.3074 | -0.23985 | 0.27344 | -0.877 | 0.4095 |
| last 20 years | 2005 | 2018 | 2.5473 | 2.3074 | -0.23985 | 0.27344 | -0.877 | 0.4095 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 10.05 | 0.10 | -4.610 | 0.174 | -26.478 | 1.0000 |
| EAC | 10.05 | 310.66 | 3.431 | 0.174 | 19.708 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
