CSEMP assessment of CB101 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 | 4.07 | 7.07 | 0.96 | -1.93 | | | |
| linear | 2 | 5.52 | 11.92 | 1.24 | -2.48 | 0.550 | 1 | 0.4584 |
| smooth (df = 2) | 3 | 5.73 | 18.23 | 2.13 | -4.27 | 1.790 | 1 | 0.1809 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2017 | 0.5611 | 0.3480 | -0.21315 | 0.28342 | -0.752 | 0.4765 |
| last 20 years | 2002 | 2017 | 0.5611 | 0.3480 | -0.21315 | 0.28342 | -0.752 | 0.4765 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1.4162 | 0.1141 | -2.5187 | 0.1677 | -15.017 | 1.0000 |
| EAC | 1.4162 | 1.5730 | 0.1050 | 0.1677 | 0.626 | 0.2756 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
