CSEMP assessment of BDE28 in sediment at Holy Loch (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 30.98 | 36.98 | -12.49 | 24.98 | | | |
| linear | 2 | 32.98 | 48.98 | -12.49 | 24.98 | 0.000 | 1 | 0.9862 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | -2.8366 | -2.8204 | 0.0161 | 0.9290 | 0.017 | 0.9870 |
| last 20 years | 2006 | 2017 | -2.8366 | -2.8204 | 0.0161 | 0.9290 | 0.017 | 0.9870 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.06 | 0.05 | -0.175 | 0.535 | -0.328 | 0.6202 |
| FEQG | 0.06 | 110.00 | 7.521 | 0.535 | 14.057 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
