CSEMP assessment of CB28 in sediment at Bann Estuary
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 96.17 | 99.17 | -45.08 | 90.17 | | | |
| linear | 2 | 95.85 | 102.25 | -43.93 | 87.85 | 2.310 | 1 | 0.1285 |
| smooth (df = 2) | 3 | 94.45 | 106.95 | -42.22 | 84.45 | 3.405 | 1 | 0.0650 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2001 | 2018 | -2.139 | -3.272 | -1.1333 | 0.6638 | -1.707 | 0.1315 |
| last 20 years | 2001 | 2018 | -2.139 | -3.272 | -1.1333 | 0.6638 | -1.707 | 0.1315 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.0379 | 0.2200 | 1.758 | 0.335 | 5.240 | 0.0006 |
| EAC | 0.0379 | 1.7000 | 3.803 | 0.335 | 11.335 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
