CSEMP assessment of mercury 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 | 35.10 | 37.67 | -14.55 | 29.10 | | | |
| linear | 2 | 36.72 | 42.05 | -14.36 | 28.72 | 0.387 | 1 | 0.5341 |
| smooth (df = 2) | 3 | 38.26 | 48.26 | -14.13 | 28.26 | 0.454 | 1 | 0.5003 |
| smooth (df = 3) | 4 | 36.83 | 54.83 | -12.42 | 24.83 | 3.430 | 1 | 0.0640 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2016 | -2.2258 | -2.3441 | -0.11835 | 0.18625 | -0.635 | 0.5429 |
| last 20 years | 2006 | 2016 | -2.2258 | -2.3441 | -0.11835 | 0.18625 | -0.635 | 0.5429 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.09593 | 0.07000 | -0.3151 | 0.0912 | -3.455 | 0.9957 |
| ERL | 0.09593 | 0.15000 | 0.4470 | 0.0912 | 4.900 | 0.0006 |
Raw data with supporting information
__sdmn_hg_au.jpg "Raw data with supporting information for assessment of mercury in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_hg_da.jpg "Raw data with assessment of mercury in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_hg_as.jpg "Assessment plot for mercury in sediment at middle (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of mercury in sediment at middle (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of mercury 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
