CSEMP assessment of CB28 in biota at Tees Bay
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 33.30 | 42.30 | -13.65 | 27.30 | | | |
| linear | 2 | 35.17 | 67.17 | -13.59 | 27.17 | 0.128 | 1 | 0.7209 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2009 | 2017 | -1.4798 | -1.3761 | 0.10371 | 0.28031 | 0.370 | 0.7360 |
| last 20 years | 2009 | 2017 | -1.4798 | -1.3761 | 0.10371 | 0.28031 | 0.370 | 0.7360 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.253 | 0.100 | -0.926 | 0.212 | -4.373 | 0.9889 |
| EAC | 0.253 | 13.132 | 3.951 | 0.212 | 18.650 | 0.0002 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
