CSEMP assessment of CB153 in biota at Flamborough
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 82.59 | 84.59 | -38.29 | 76.59 | | | |
| linear | 2 | 84.04 | 88.04 | -38.02 | 76.04 | 0.550 | 1 | 0.4581 |
| smooth (df = 2) | 3 | 83.24 | 90.38 | -36.62 | 73.24 | 2.803 | 1 | 0.0941 |
| smooth (df = 3) | 4 | 80.70 | 92.70 | -34.35 | 68.70 | 4.531 | 1 | 0.0333 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 2.9079 | 3.1426 | 0.23470 | 0.31267 | 0.751 | 0.4702 |
| last 20 years | 1999 | 2017 | 2.9079 | 3.1426 | 0.23470 | 0.31267 | 0.751 | 0.4702 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 23.16 | 0.10 | -5.445 | 0.190 | -28.617 | 1.0000 |
| EAC | 23.16 | 310.66 | 2.596 | 0.190 | 13.644 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
