CSEMP assessment of BD153 in sediment at Garroch Head (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 37.63 | 46.63 | -15.82 | 31.63 | | | |
| linear | 2 | 38.82 | 70.82 | -15.41 | 30.82 | 0.809 | 1 | 0.3685 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | -1.9362 | -2.5150 | -0.5787 | 0.6382 | -0.907 | 0.4314 |
| last 20 years | 2006 | 2017 | -1.9362 | -2.5150 | -0.5787 | 0.6382 | -0.907 | 0.4314 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1 | 0.0 | -0.481 | 0.295 | -1.629 | 0.8991 |
| FEQG | 0.1 | 1100.0 | 9.518 | 0.295 | 32.253 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
