CSEMP assessment of CB118 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 | 24.38 | 26.95 | -9.19 | 18.38 | | | |
| linear | 2 | 24.59 | 29.92 | -8.29 | 16.59 | 1.791 | 1 | 0.1808 |
| smooth (df = 2) | 3 | 26.58 | 36.58 | -8.29 | 16.58 | 0.005 | 1 | 0.9427 |
| smooth (df = 3) | 4 | 27.81 | 45.81 | -7.90 | 15.81 | 0.778 | 1 | 0.3778 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2004 | 2018 | 2.0848 | 1.6604 | -0.4244 | 0.3036 | -1.398 | 0.1996 |
| last 20 years | 2004 | 2018 | 2.0848 | 1.6604 | -0.4244 | 0.3036 | -1.398 | 0.1996 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 5.261 | 0.100 | -3.963 | 0.196 | -20.270 | 1.0000 |
| EAC | 5.261 | 4.900 | -0.071 | 0.196 | -0.364 | 0.6374 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
