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 | 2.21 | 5.81 | 1.90 | -3.79 | | | |
| linear | 2 | 3.50 | 11.50 | 2.25 | -4.50 | 0.707 | 1 | 0.4006 |
| smooth (df = 2) | 3 | 5.13 | 21.80 | 2.44 | -4.87 | 0.372 | 1 | 0.5421 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | 2.5648 | 2.3045 | -0.26031 | 0.30272 | -0.860 | 0.4229 |
| last 20 years | 2005 | 2016 | 2.5648 | 2.3045 | -0.26031 | 0.30272 | -0.860 | 0.4229 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 10.02 | 0.10 | -4.607 | 0.192 | -23.954 | 1.0000 |
| EAC | 10.02 | 310.66 | 3.434 | 0.192 | 17.856 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
