CSEMP assessment of copper in sediment at middle (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -15.01 | -12.76 | 10.50 | -21.01 | | | |
| linear | 2 | -14.66 | -10.09 | 11.33 | -22.66 | 1.653 | 1 | 0.1986 |
| smooth (df = 2) | 3 | -17.28 | -8.95 | 13.64 | -27.28 | 4.620 | 1 | 0.0316 |
| smooth (df = 3) | 4 | -20.13 | -5.73 | 16.07 | -32.13 | 4.852 | 1 | 0.0276 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | 3.204 | 2.968 | -0.23580 | 0.16991 | -1.388 | 0.1986 |
| last 20 years | 2006 | 2017 | 3.204 | 2.968 | -0.23580 | 0.16991 | -1.388 | 0.1986 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 19.46 | 27.00 | 0.3277 | 0.0885 | 3.702 | 0.0025 |
| ERL | 19.46 | 34.00 | 0.5582 | 0.0885 | 6.307 | <0.0001 |
Raw data with supporting information
__sdmn_cu_au.jpg "Raw data with supporting information for assessment of copper in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_cu_da.jpg "Raw data with assessment of copper in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_cu_as.jpg "Assessment plot for copper in sediment at middle (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of copper in sediment at middle (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of copper in sediment at middle (Firth of Clyde)")
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in sediment
- Accessment criteria for metals in sediment
