CSEMP assessment of copper in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 1.21 | 4.81 | 2.39 | -4.79 | | | |
| linear | 2 | 3.02 | 11.02 | 2.49 | -4.98 | 0.190 | 1 | 0.6633 |
| smooth (df = 2) | 3 | 4.22 | 20.88 | 2.89 | -5.78 | 0.807 | 1 | 0.3690 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2013 | 2.4055 | 2.4589 | 0.05340 | 0.12198 | 0.438 | 0.6769 |
| last 20 years | 2006 | 2013 | 2.4055 | 2.4589 | 0.05340 | 0.12198 | 0.438 | 0.6769 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 11.69 | 27.00 | 0.8369 | 0.0826 | 10.128 | <0.0001 |
| ERL | 11.69 | 34.00 | 1.0675 | 0.0826 | 12.918 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Metals data
Metals assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in sediment
- Accessment criteria for metals in sediment
