CSEMP assessment of nickel in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -58.06 | -56.77 | 32.03 | -64.06 | | | |
| linear | 2 | -56.45 | -53.99 | 32.22 | -64.45 | 0.389 | 1 | 0.5326 |
| smooth (df = 2) | 3 | -57.66 | -53.50 | 33.83 | -67.66 | 3.214 | 1 | 0.0730 |
| smooth (df = 3) | 4 | -61.50 | -54.96 | 36.75 | -73.50 | 5.837 | 1 | 0.0157 |
| smooth (df = 4) | 5 | -62.75 | -52.95 | 38.38 | -76.75 | 3.252 | 1 | 0.0713 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | 3.851 | 3.783 | -0.06839 | 0.10924 | -0.626 | 0.5407 |
| last 20 years | 1999 | 2016 | 3.851 | 3.783 | -0.06839 | 0.10924 | -0.626 | 0.5407 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 43.93 | 36.00 | -0.19909 | 0.05788 | -3.440 | 0.9982 |
Raw data with supporting information
__sdmn_ni_au.jpg "Raw data with supporting information for assessment of nickel in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_ni_da.jpg "Raw data with assessment of nickel in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_ni_as.jpg "Assessment plot for nickel in sediment at inner (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of nickel in sediment at inner (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of nickel in sediment at inner (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
