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 | 104.65 | 106.29 | -49.33 | 98.65 | | | |
| linear | 2 | 99.69 | 102.89 | -45.85 | 91.69 | 6.961 | 1 | 0.0083 |
| smooth (df = 2) | 3 | 98.41 | 103.97 | -44.21 | 88.41 | 3.280 | 1 | 0.0701 |
| smooth (df = 3) | 4 | 100.38 | 109.38 | -44.19 | 88.38 | 0.030 | 1 | 0.8619 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | -1.1303 | -0.4178 | 0.7125 | 0.2374 | 3.002 | 0.0110 |
| last 20 years | 2000 | 2018 | -1.1303 | -0.4178 | 0.7125 | 0.2374 | 3.002 | 0.0110 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.6585 | 0.1400 | -1.5483 | 0.1122 | -13.798 | 1.0000 |
| EAC | 0.6585 | 3.0000 | 1.5164 | 0.1122 | 13.513 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
