CSEMP assessment of CB180 in sediment at Inner Firth of Clyde, Nth of Cumbrae
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -15.13 | -6.13 | 10.57 | -21.13 | | | |
| linear | 2 | -13.37 | 18.63 | 10.69 | -21.37 | 0.243 | 1 | 0.6219 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2013 | 0.4297 | 0.5042 | 0.07447 | 0.14519 | 0.513 | 0.6434 |
| last 20 years | 1999 | 2013 | 0.4297 | 0.5042 | 0.07447 | 0.14519 | 0.513 | 0.6434 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 1.656 | 0.100 | -2.8067 | 0.1212 | -23.161 | 0.9999 |
| EAC | 1.656 | 12.000 | 1.9807 | 0.1212 | 16.345 | 0.0002 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
