CSEMP assessment of lead in biota at Farne
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 41.70 | 47.70 | -17.85 | 35.70 | | | |
| linear | 2 | 43.09 | 59.09 | -17.54 | 35.09 | 0.609 | 1 | 0.4353 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | 5.109 | 4.689 | -0.4195 | 0.5238 | -0.801 | 0.4681 |
| last 20 years | 2006 | 2017 | 5.109 | 4.689 | -0.4195 | 0.5238 | -0.801 | 0.4681 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 108.8 | 26.0 | -1.4311 | 0.3452 | -4.145 | 0.9928 |
| EC | 108.8 | 1500.0 | 2.6241 | 0.3452 | 7.601 | 0.0008 |
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
