CSEMP assessment of CB101 in sediment at Sea of Hebrides
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 122.23 | 125.23 | -58.12 | 116.23 | | | |
| linear | 2 | 124.22 | 130.62 | -58.11 | 116.22 | 0.011 | 1 | 0.9155 |
| smooth (df = 2) | 3 | 120.52 | 133.02 | -55.26 | 110.52 | 5.701 | 1 | 0.0170 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2018 | -2.1001 | -2.0046 | 0.0955 | 0.8920 | 0.107 | 0.9177 |
| last 20 years | 2006 | 2018 | -2.1001 | -2.0046 | 0.0955 | 0.8920 | 0.107 | 0.9177 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1347 | 0.1400 | 0.0384 | 0.5432 | 0.071 | 0.4728 |
| EAC | 0.1347 | 3.0000 | 3.1032 | 0.5432 | 5.712 | 0.0004 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
