CSEMP assessment of BDE28 in biota at Flamborough
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 75.29 | 78.89 | -34.65 | 69.29 | | | |
| linear | 2 | 68.12 | 76.12 | -30.06 | 60.12 | 9.165 | 1 | 0.0025 |
| smooth (df = 2) | 3 | 64.32 | 80.99 | -27.16 | 54.32 | 5.804 | 1 | 0.0160 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2017 | -1.0345 | -2.6968 | -1.6623 | 0.4109 | -4.046 | 0.0068 |
| last 20 years | 2005 | 2017 | -1.0345 | -2.6968 | -1.6623 | 0.4109 | -4.046 | 0.0068 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.07 | 0.01 | -1.726 | 0.275 | -6.285 | 0.9996 |
| FEQG | 0.07 | 120.00 | 7.484 | 0.275 | 27.254 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
