CSEMP assessment of BDE99 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 | 132.88 | 135.45 | -63.44 | 126.88 | | | |
| linear | 2 | 126.33 | 131.66 | -59.16 | 118.33 | 8.553 | 1 | 0.0034 |
| smooth (df = 2) | 3 | 128.25 | 138.25 | -59.12 | 118.25 | 0.080 | 1 | 0.7767 |
| smooth (df = 3) | 4 | 130.12 | 148.12 | -59.06 | 118.12 | 0.128 | 1 | 0.7207 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2009 | 2018 | 0.5944 | -1.1073 | -1.7017 | 0.4849 | -3.510 | 0.0080 |
| last 20 years | 2009 | 2018 | 0.5944 | -1.1073 | -1.7017 | 0.4849 | -3.510 | 0.0080 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.3305 | 0.0500 | -1.8884 | 0.2673 | -7.065 | 0.9999 |
| FEQG | 0.3305 | 1.0000 | 1.1073 | 0.2673 | 4.142 | 0.0016 |
Raw data with supporting information
_sdmn_bde99_au.jpg "Raw data with supporting information for assessment of BDE99 in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_bde99_da.jpg "Raw data with assessment of BDE99 in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_bde99_as.jpg "Assessment plot for BDE99 in sediment at Hunterston (Clyde)")
Organo-bromines data
_sdmn_orgn-bda.jpg "Organo-bromines data for assessment of BDE99 in sediment at Hunterston (Clyde)")
Organo-bromines assessment
_sdmn_orgn-bas.jpg "Organo-bromines assessment of BDE99 in sediment at Hunterston (Clyde)")
Related pages
