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 | 1.30 | 3.87 | 2.35 | -4.70 | | | |
| linear | 2 | 1.91 | 7.24 | 3.05 | -6.09 | 1.388 | 1 | 0.2387 |
| smooth (df = 2) | 3 | 3.09 | 13.09 | 3.46 | -6.91 | 0.818 | 1 | 0.3658 |
| smooth (df = 3) | 4 | 5.04 | 23.04 | 3.48 | -6.96 | 0.044 | 1 | 0.8333 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2018 | 0.5901 | 0.2663 | -0.3238 | 0.2630 | -1.231 | 0.2532 |
| last 20 years | 2002 | 2018 | 0.5901 | 0.2663 | -0.3238 | 0.2630 | -1.231 | 0.2532 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1.3051 | 0.1141 | -2.4370 | 0.1514 | -16.093 | 1.0000 |
| EAC | 1.3051 | 1.5730 | 0.1867 | 0.1514 | 1.233 | 0.1263 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
