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 | -41.35 | -39.10 | 23.67 | -47.35 | | | |
| linear | 2 | -39.51 | -34.94 | 23.75 | -47.51 | 0.162 | 1 | 0.6873 |
| smooth (df = 2) | 3 | -39.15 | -30.81 | 24.57 | -49.15 | 1.637 | 1 | 0.2007 |
| smooth (df = 3) | 4 | -38.61 | -24.21 | 25.31 | -50.61 | 1.466 | 1 | 0.2260 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | 3.737 | 3.689 | -0.04738 | 0.11457 | -0.414 | 0.6889 |
| last 20 years | 2006 | 2017 | 3.737 | 3.689 | -0.04738 | 0.11457 | -0.414 | 0.6889 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 40.02 | 36.00 | -0.10578 | 0.05659 | -1.869 | 0.9528 |
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
