CSEMP assessment of nickel 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 | -41.79 | -40.59 | 23.89 | -47.79 | | | |
| linear | 2 | -39.80 | -37.52 | 23.90 | -47.80 | 0.014 | 1 | 0.9061 |
| smooth (df = 2) | 3 | -38.55 | -34.71 | 24.28 | -48.55 | 0.754 | 1 | 0.3852 |
| smooth (df = 3) | 4 | -41.87 | -35.87 | 26.93 | -53.87 | 5.312 | 1 | 0.0212 |
| smooth (df = 4) | 5 | -39.95 | -31.04 | 26.97 | -53.95 | 0.080 | 1 | 0.7770 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | 3.458 | 3.473 | 0.01471 | 0.12343 | 0.119 | 0.9066 |
| last 20 years | 1999 | 2016 | 3.458 | 3.473 | 0.01471 | 0.12343 | 0.119 | 0.9066 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 32.24 | 36.00 | 0.11036 | 0.06574 | 1.679 | 0.0563 |
Raw data with supporting information
__sdmn_ni_au.jpg "Raw data with supporting information for assessment of nickel in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_ni_da.jpg "Raw data with assessment of nickel in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_ni_as.jpg "Assessment plot for nickel in sediment at inner (Firth of Forth)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of nickel in sediment at inner (Firth of Forth)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of nickel 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
