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 | 38.87 | 44.87 | -16.43 | 32.87 | | | |
| linear | 2 | 39.35 | 55.35 | -15.67 | 31.35 | 1.520 | 1 | 0.2176 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2018 | -1.9251 | -2.6375 | -0.7125 | 0.5799 | -1.229 | 0.2866 |
| last 20 years | 2006 | 2018 | -1.9251 | -2.6375 | -0.7125 | 0.5799 | -1.229 | 0.2866 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1 | 0.0 | -0.358 | 0.381 | -0.940 | 0.7998 |
| FEQG | 0.1 | 1100.0 | 9.641 | 0.381 | 25.305 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
