CSEMP assessment of BD154 in biota at West Lundy
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 63.51 | 72.51 | -28.76 | 57.51 | | | |
| linear | 2 | 64.12 | 96.12 | -28.06 | 56.12 | 1.395 | 1 | 0.2375 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | -1.0958 | -1.8814 | -0.7857 | 0.6198 | -1.268 | 0.2944 |
| last 20 years | 2005 | 2018 | -1.0958 | -1.8814 | -0.7857 | 0.6198 | -1.268 | 0.2944 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.152 | 0.012 | -2.541 | 0.322 | -7.903 | 0.9979 |
| FEQG | 0.152 | 4.000 | 3.268 | 0.322 | 10.162 | 0.0010 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
