CSEMP assessment of mercury in sediment at outer (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 102.30 | 104.30 | -48.15 | 96.30 | | | |
| linear | 2 | 97.48 | 101.48 | -44.74 | 89.48 | 6.816 | 1 | 0.0090 |
| smooth (df = 2) | 3 | 94.95 | 102.10 | -42.48 | 84.95 | 4.526 | 1 | 0.0334 |
| smooth (df = 3) | 4 | 96.94 | 108.94 | -42.47 | 84.94 | 0.013 | 1 | 0.9082 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2001 | 2016 | -1.6892 | -3.0635 | -1.3744 | 0.4513 | -3.045 | 0.0123 |
| last 20 years | 2001 | 2016 | -1.6892 | -3.0635 | -1.3744 | 0.4513 | -3.045 | 0.0123 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.04672 | 0.07000 | 0.4043 | 0.2528 | 1.599 | 0.0704 |
| ERL | 0.04672 | 0.15000 | 1.1664 | 0.2528 | 4.615 | 0.0005 |
Raw data with supporting information
__sdmn_hg_au.jpg "Raw data with supporting information for assessment of mercury in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_hg_da.jpg "Raw data with assessment of mercury in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_hg_as.jpg "Assessment plot for mercury in sediment at outer (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of mercury in sediment at outer (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of mercury in sediment at outer (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
