CSEMP assessment of CB180 in biota at South Eddystone
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 55.82 | 58.82 | -24.91 | 49.82 | | | |
| linear | 2 | 57.38 | 63.78 | -24.69 | 49.38 | 0.447 | 1 | 0.5038 |
| smooth (df = 2) | 3 | 59.33 | 71.83 | -24.66 | 49.33 | 0.048 | 1 | 0.8268 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | 1.0446 | 0.7447 | -0.2999 | 0.4481 | -0.669 | 0.5248 |
| last 20 years | 2005 | 2018 | 1.0446 | 0.7447 | -0.2999 | 0.4481 | -0.669 | 0.5248 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 2.11 | 0.11 | -2.952 | 0.287 | -10.303 | 1.0000 |
| EAC | 2.11 | 91.92 | 3.776 | 0.287 | 13.180 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
