CSEMP assessment of BD153 in biota at Flamborough
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 44.04 | 53.04 | -19.02 | 38.04 | | | |
| linear | 2 | 36.97 | 68.97 | -14.49 | 28.97 | 9.074 | 1 | 0.0026 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2017 | -0.7569 | -3.0331 | -2.2762 | 0.4823 | -4.719 | 0.0180 |
| last 20 years | 2005 | 2017 | -0.7569 | -3.0331 | -2.2762 | 0.4823 | -4.719 | 0.0180 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.048 | 0.012 | -1.390 | 0.319 | -4.361 | 0.9889 |
| FEQG | 0.048 | 4.000 | 4.419 | 0.319 | 13.869 | 0.0004 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
