CSEMP assessment of cadmium 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 | 19.68 | 25.68 | -6.84 | 13.68 | |||
linear | 2 | 18.74 | 34.74 | -5.37 | 10.74 | 2.936 | 1 | 0.0866 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2007 | 2013 | -2.5614 | -2.1665 | 0.3949 | 0.2268 | 1.741 | 0.1566 |
last 20 years | 2007 | 2013 | -2.5614 | -2.1665 | 0.3949 | 0.2268 | 1.741 | 0.1566 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.1146 | 0.3100 | 0.9953 | 0.1205 | 8.261 | 0.0006 |
ERL | 0.1146 | 1.2000 | 2.3488 | 0.1205 | 19.495 | <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
Media : Sediment (unsieved)
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : Cadmium
Units : mg kg -1 dry weight normalised to 5% aluminium
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : Cadmium
Units : mg kg -1 dry weight normalised to 5% aluminium
Data extraction : 30 April 2020