CSEMP assessment of mercury in sediment at North Minch
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 43.46 | 49.46 | -18.73 | 37.46 | | | |
| linear | 2 | 32.08 | 48.08 | -12.04 | 24.08 | 13.374 | 1 | 0.0003 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2004 | 2016 | -1.964 | -3.725 | -1.7605 | 0.3563 | -4.941 | 0.0078 |
| last 20 years | 2004 | 2016 | -1.964 | -3.725 | -1.7605 | 0.3563 | -4.941 | 0.0078 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.02412 | 0.07000 | 1.0655 | 0.2444 | 4.361 | 0.0060 |
| ERL | 0.02412 | 0.15000 | 1.8277 | 0.2444 | 7.480 | 0.0009 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Metals data
Metals assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in sediment
- Accessment criteria for metals in sediment
