CSEMP assessment of BDE47 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 | 78.93 | 82.53 | -36.46 | 72.93 | | | |
| linear | 2 | 66.13 | 74.13 | -29.06 | 58.13 | 14.801 | 1 | 0.0001 |
| smooth (df = 2) | 3 | 67.98 | 84.65 | -28.99 | 57.98 | 0.146 | 1 | 0.7024 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | 0.6726 | -1.2733 | -1.9459 | 0.2993 | -6.502 | 0.0006 |
| last 20 years | 2005 | 2016 | 0.6726 | -1.2733 | -1.9459 | 0.2993 | -6.502 | 0.0006 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.28 | 0.01 | -3.150 | 0.189 | -16.684 | 1.0000 |
| FEQG | 0.28 | 44.00 | 5.057 | 0.189 | 26.790 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
