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 | 87.90 | 90.90 | -40.95 | 81.90 | | | |
| linear | 2 | 73.91 | 80.31 | -32.95 | 65.91 | 15.992 | 1 | <0.0001 |
| smooth (df = 2) | 3 | 75.49 | 87.99 | -32.74 | 65.49 | 0.417 | 1 | 0.5182 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | 0.5898 | -1.3977 | -1.9875 | 0.2992 | -6.642 | 0.0003 |
| last 20 years | 2005 | 2018 | 0.5898 | -1.3977 | -1.9875 | 0.2992 | -6.642 | 0.0003 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.25 | 0.01 | -3.025 | 0.189 | -16.005 | 1.0000 |
| FEQG | 0.25 | 44.00 | 5.182 | 0.189 | 27.416 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
