CSEMP assessment of BDE66 in sediment at Hunterston (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 95.88 | 98.13 | -44.94 | 89.88 | | | |
| linear | 2 | 83.13 | 87.70 | -37.56 | 75.13 | 14.748 | 1 | 0.0001 |
| smooth (df = 2) | 3 | 83.97 | 92.31 | -36.99 | 73.97 | 1.155 | 1 | 0.2825 |
| smooth (df = 3) | 4 | 81.72 | 96.12 | -34.86 | 69.72 | 4.251 | 1 | 0.0392 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2018 | -0.9295 | -2.4064 | -1.4770 | 0.2935 | -5.033 | 0.0007 |
| last 20 years | 2008 | 2018 | -0.9295 | -2.4064 | -1.4770 | 0.2935 | -5.033 | 0.0007 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.09 | 0.05 | -0.589 | 0.168 | -3.498 | 0.9966 |
| FEQG | 0.09 | 97.50 | 6.986 | 0.168 | 41.475 | <0.0001 |
Raw data with supporting information
_sdmn_bde66_au.jpg "Raw data with supporting information for assessment of BDE66 in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_bde66_da.jpg "Raw data with assessment of BDE66 in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_bde66_as.jpg "Assessment plot for BDE66 in sediment at Hunterston (Clyde)")
Organo-bromines data
_sdmn_orgn-bda.jpg "Organo-bromines data for assessment of BDE66 in sediment at Hunterston (Clyde)")
Organo-bromines assessment
_sdmn_orgn-bas.jpg "Organo-bromines assessment of BDE66 in sediment at Hunterston (Clyde)")
Related pages
