CSEMP assessment of cadmium in sediment at inner (Firth of Forth)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 113.17 | 114.67 | -53.59 | 107.17 | | | |
| linear | 2 | 109.55 | 112.46 | -50.78 | 101.55 | 5.624 | 1 | 0.0177 |
| smooth (df = 2) | 3 | 110.20 | 115.20 | -50.10 | 100.20 | 1.347 | 1 | 0.2459 |
| smooth (df = 3) | 4 | 110.99 | 118.99 | -49.49 | 98.99 | 1.217 | 1 | 0.2700 |
| smooth (df = 4) | 5 | 112.78 | 125.03 | -49.39 | 98.78 | 0.211 | 1 | 0.6463 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2016 | -1.5278 | -2.4476 | -0.9198 | 0.3496 | -2.631 | 0.0208 |
| last 20 years | 2002 | 2016 | -1.5278 | -2.4476 | -0.9198 | 0.3496 | -2.631 | 0.0208 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.0865 | 0.3100 | 1.2764 | 0.2025 | 6.304 | <0.0001 |
| ERL | 0.0865 | 1.2000 | 2.6299 | 0.2025 | 12.988 | <0.0001 |
Raw data with supporting information
__sdmn_cd_au.jpg "Raw data with supporting information for assessment of cadmium in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cd_da.jpg "Raw data with assessment of cadmium in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cd_as.jpg "Assessment plot for cadmium in sediment at inner (Firth of Forth)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of cadmium in sediment at inner (Firth of Forth)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of cadmium in sediment at inner (Firth of Forth)")
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in sediment
- Accessment criteria for metals in sediment
