CSEMP assessment of CB101 in biota at Flamborough
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 135.15 | 137.40 | -64.57 | 129.15 | | | |
| linear | 2 | 132.38 | 136.95 | -62.19 | 124.38 | 4.771 | 1 | 0.0290 |
| smooth (df = 2) | 3 | 131.05 | 139.39 | -60.53 | 121.05 | 3.326 | 1 | 0.0682 |
| smooth (df = 3) | 4 | 131.22 | 145.62 | -59.61 | 119.22 | 1.837 | 1 | 0.1753 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 0.0699 | 1.7196 | 1.6497 | 0.6833 | 2.414 | 0.0390 |
| last 20 years | 1999 | 2017 | 0.0699 | 1.7196 | 1.6497 | 0.6833 | 2.414 | 0.0390 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 5.582 | 0.080 | -4.245 | 0.410 | -10.359 | 1.0000 |
| EAC | 5.582 | 23.716 | 1.447 | 0.410 | 3.530 | 0.0032 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
