CSEMP assessment of mercury in biota at Off Boston (Wash)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 0.52 | 2.77 | 2.74 | -5.48 | | | |
| linear | 2 | -0.61 | 3.96 | 4.31 | -8.61 | 3.138 | 1 | 0.0765 |
| smooth (df = 2) | 3 | -3.65 | 4.68 | 6.82 | -13.65 | 5.034 | 1 | 0.0249 |
| smooth (df = 3) | 4 | -2.14 | 12.26 | 7.07 | -14.14 | 0.490 | 1 | 0.4838 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 2.9474 | 2.1597 | -0.7876 | 0.4073 | -1.934 | 0.0852 |
| last 20 years | 1999 | 2017 | 2.9474 | 2.1597 | -0.7876 | 0.4073 | -1.934 | 0.0852 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 8.7 | 14.7 | 0.526 | 0.241 | 2.187 | 0.0283 |
| EC | 8.7 | 500.0 | 4.055 | 0.241 | 16.859 | <0.0001 |
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 biota
- Accessment criteria for metals in biota
