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 | 52.97 | 56.57 | -23.48 | 46.97 | | | |
| linear | 2 | 54.70 | 62.70 | -23.35 | 46.70 | 0.264 | 1 | 0.6072 |
| smooth (df = 2) | 3 | 56.63 | 73.29 | -23.31 | 46.63 | 0.073 | 1 | 0.7870 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | 1.0446 | 0.7899 | -0.2547 | 0.4912 | -0.519 | 0.6227 |
| last 20 years | 2005 | 2016 | 1.0446 | 0.7899 | -0.2547 | 0.4912 | -0.519 | 0.6227 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 2.20 | 0.11 | -2.997 | 0.320 | -9.380 | 1.0000 |
| EAC | 2.20 | 91.92 | 3.731 | 0.320 | 11.677 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
