CSEMP assessment of cadmium in sediment at outer (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 59.66 | 61.66 | -26.83 | 53.66 | | | |
| linear | 2 | 60.00 | 64.00 | -26.00 | 52.00 | 1.660 | 1 | 0.1976 |
| smooth (df = 2) | 3 | 59.37 | 66.52 | -24.69 | 49.37 | 2.621 | 1 | 0.1055 |
| smooth (df = 3) | 4 | 61.33 | 73.33 | -24.67 | 49.33 | 0.043 | 1 | 0.8357 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2004 | 2017 | -2.4049 | -2.0539 | 0.3509 | 0.2668 | 1.315 | 0.2178 |
| last 20 years | 2004 | 2017 | -2.4049 | -2.0539 | 0.3509 | 0.2668 | 1.315 | 0.2178 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1282 | 0.3100 | 0.8827 | 0.1651 | 5.348 | 0.0002 |
| ERL | 0.1282 | 1.2000 | 2.2362 | 0.1651 | 13.548 | <0.0001 |
Raw data with supporting information
__sdmn_cd_au.jpg "Raw data with supporting information for assessment of cadmium in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_cd_da.jpg "Raw data with assessment of cadmium in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_cd_as.jpg "Assessment plot for cadmium in sediment at outer (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of cadmium in sediment at outer (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of cadmium in sediment at outer (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
