CSEMP assessment of BD100 in biota at South Eddystone
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 77.54 | 82.04 | -35.77 | 71.54 | | | |
| linear | 2 | 75.91 | 86.58 | -33.95 | 67.91 | 3.630 | 1 | 0.0567 |
| smooth (df = 2) | 3 | 76.02 | 101.02 | -33.01 | 66.02 | 1.892 | 1 | 0.1690 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | -1.0370 | -2.0043 | -0.9673 | 0.4302 | -2.249 | 0.0744 |
| last 20 years | 2005 | 2016 | -1.0370 | -2.0043 | -0.9673 | 0.4302 | -2.249 | 0.0744 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1348 | 0.0120 | -2.4186 | 0.2750 | -8.795 | 0.9998 |
| FEQG | 0.1348 | 1.0000 | 2.0043 | 0.2750 | 7.289 | 0.0004 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
