CSEMP assessment of CB28 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 | 11.08 | 17.08 | -2.54 | 5.08 | | | |
| linear | 2 | 13.07 | 29.07 | -2.53 | 5.07 | 0.012 | 1 | 0.9132 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2018 | -0.9994 | -1.0288 | -0.02943 | 0.26835 | -0.110 | 0.9180 |
| last 20 years | 2002 | 2018 | -0.9994 | -1.0288 | -0.02943 | 0.26835 | -0.110 | 0.9180 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.3574 | 0.1223 | -1.0729 | 0.1360 | -7.891 | 0.9993 |
| EAC | 0.3574 | 0.8710 | 0.8907 | 0.1360 | 6.551 | 0.0014 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
