CSEMP assessment of CB153 in biota at West Lundy
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 22.19 | 31.19 | -8.10 | 16.19 | | | |
| linear | 2 | 22.51 | 54.51 | -7.25 | 14.51 | 1.687 | 1 | 0.1940 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | 3.0106 | 2.5393 | -0.4713 | 0.3298 | -1.429 | 0.2483 |
| last 20 years | 2005 | 2018 | 3.0106 | 2.5393 | -0.4713 | 0.3298 | -1.429 | 0.2483 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 12.67 | 0.10 | -4.842 | 0.172 | -28.186 | 1.0000 |
| EAC | 12.67 | 310.66 | 3.199 | 0.172 | 18.625 | 0.0002 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
