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 | -60.71 | -59.51 | 33.35 | -66.71 | | | |
| linear | 2 | -59.06 | -56.77 | 33.53 | -67.06 | 0.354 | 1 | 0.5520 |
| smooth (df = 2) | 3 | -59.47 | -55.62 | 34.73 | -69.47 | 2.408 | 1 | 0.1207 |
| smooth (df = 3) | 4 | -59.85 | -53.85 | 35.93 | -71.85 | 2.384 | 1 | 0.1226 |
| smooth (df = 4) | 5 | -57.85 | -48.94 | 35.93 | -71.85 | 0.001 | 1 | 0.9795 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 3.847 | 3.786 | -0.06172 | 0.10347 | -0.597 | 0.5592 |
| last 20 years | 1999 | 2017 | 3.847 | 3.786 | -0.06172 | 0.10347 | -0.597 | 0.5592 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 44.06 | 36.00 | -0.20204 | 0.05484 | -3.684 | 0.9990 |
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
