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 | 56.62 | 58.87 | -25.31 | 50.62 | | | |
| linear | 2 | 57.63 | 62.20 | -24.81 | 49.63 | 0.994 | 1 | 0.3188 |
| smooth (df = 2) | 3 | 56.72 | 65.06 | -23.36 | 46.72 | 2.906 | 1 | 0.0883 |
| smooth (df = 3) | 4 | 57.93 | 72.33 | -22.97 | 45.93 | 0.790 | 1 | 0.3741 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2004 | 2016 | -2.3966 | -2.1057 | 0.29093 | 0.28717 | 1.013 | 0.3375 |
| last 20 years | 2004 | 2016 | -2.3966 | -2.1057 | 0.29093 | 0.28717 | 1.013 | 0.3375 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1218 | 0.3100 | 0.9345 | 0.1778 | 5.255 | 0.0003 |
| ERL | 0.1218 | 1.2000 | 2.2880 | 0.1778 | 12.866 | <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
