CSEMP assessment of CB28 in biota at Camarthen Bay
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 50.07 | 56.07 | -22.03 | 44.07 | | | |
| linear | 2 | 51.18 | 67.18 | -21.59 | 43.18 | 0.882 | 1 | 0.3476 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | -0.28574 | 0.21723 | 0.5030 | 0.5259 | 0.956 | 0.3930 |
| last 20 years | 2005 | 2016 | -0.28574 | 0.21723 | 0.5030 | 0.5259 | 0.956 | 0.3930 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1.243 | 0.100 | -2.5198 | 0.2957 | -8.521 | 0.9995 |
| EAC | 1.243 | 13.132 | 2.3578 | 0.2957 | 7.974 | 0.0007 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
