CSEMP assessment of CB101 in sediment at Forth Estuary
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 100.15 | 101.95 | -47.07 | 94.15 | | | |
| linear | 2 | 96.52 | 100.08 | -44.26 | 88.52 | 5.623 | 1 | 0.0177 |
| smooth (df = 2) | 3 | 94.23 | 100.48 | -42.11 | 84.23 | 4.296 | 1 | 0.0382 |
| smooth (df = 3) | 4 | 96.12 | 106.41 | -42.06 | 84.12 | 0.103 | 1 | 0.7479 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | -1.1273 | -0.4661 | 0.6612 | 0.2471 | 2.676 | 0.0215 |
| last 20 years | 2000 | 2017 | -1.1273 | -0.4661 | 0.6612 | 0.2471 | 2.676 | 0.0215 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.6274 | 0.1400 | -1.5000 | 0.1169 | -12.828 | 1.0000 |
| EAC | 0.6274 | 3.0000 | 1.5647 | 0.1169 | 13.382 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
