CSEMP assessment of mercury in sediment at Off Tees
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 4.41 | 13.41 | 0.80 | -1.59 | | | |
| linear | 2 | 4.69 | 36.69 | 1.65 | -3.31 | 1.710 | 1 | 0.1909 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2010 | 2017 | -1.1372 | -1.3645 | -0.22734 | 0.16981 | -1.339 | 0.2731 |
| last 20 years | 2010 | 2017 | -1.1372 | -1.3645 | -0.22734 | 0.16981 | -1.339 | 0.2731 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.2555 | 0.0700 | -1.2947 | 0.0923 | -14.034 | 0.9996 |
| ERL | 0.2555 | 0.1500 | -0.5326 | 0.0923 | -5.773 | 0.9948 |
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
