CSEMP assessment of nickel 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 | -34.53 | -31.95 | 20.26 | -40.53 | | | |
| linear | 2 | -33.41 | -28.07 | 20.70 | -41.41 | 0.881 | 1 | 0.3479 |
| smooth (df = 2) | 3 | -39.64 | -29.64 | 24.82 | -49.64 | 8.237 | 1 | 0.0041 |
| smooth (df = 3) | 4 | -38.05 | -20.05 | 25.02 | -50.05 | 0.402 | 1 | 0.5259 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2016 | 3.772 | 3.655 | -0.11738 | 0.11613 | -1.011 | 0.3417 |
| last 20 years | 2006 | 2016 | 3.772 | 3.655 | -0.11738 | 0.11613 | -1.011 | 0.3417 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 38.65 | 36.00 | -0.07111 | 0.05576 | -1.275 | 0.8810 |
Raw data with supporting information
__sdmn_ni_au.jpg "Raw data with supporting information for assessment of nickel in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_ni_da.jpg "Raw data with assessment of nickel in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_ni_as.jpg "Assessment plot for nickel in sediment at middle (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of nickel in sediment at middle (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of nickel 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
