CSEMP assessment of CB153 in biota at New Brighton (Mersey)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -28.47 | -25.90 | 17.24 | -34.47 | | | |
| linear | 2 | -28.87 | -23.54 | 18.44 | -36.87 | 2.398 | 1 | 0.1215 |
| smooth (df = 2) | 3 | -27.04 | -17.04 | 18.52 | -37.04 | 0.168 | 1 | 0.6816 |
| smooth (df = 3) | 4 | -26.03 | -8.03 | 19.02 | -38.03 | 0.990 | 1 | 0.3197 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2017 | 1.2739 | 0.9878 | -0.28616 | 0.17073 | -1.676 | 0.1323 |
| last 20 years | 2002 | 2017 | 1.2739 | 0.9878 | -0.28616 | 0.17073 | -1.676 | 0.1323 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 2.685 | 0.098 | -3.313 | 0.099 | -33.592 | 1.0000 |
| EAC | 2.685 | 20.605 | 2.038 | 0.099 | 20.664 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
