CSEMP assessment of BDE47 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 | 107.35 | 109.60 | -50.67 | 101.35 | | | |
| linear | 2 | 97.06 | 101.63 | -44.53 | 89.06 | 12.288 | 1 | 0.0005 |
| smooth (df = 2) | 3 | 97.59 | 105.93 | -43.80 | 87.59 | 1.465 | 1 | 0.2261 |
| smooth (df = 3) | 4 | 96.85 | 111.25 | -42.43 | 84.85 | 2.741 | 1 | 0.0978 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2018 | 0.1109 | -1.0793 | -1.1902 | 0.3074 | -3.872 | 0.0038 |
| last 20 years | 2008 | 2018 | 0.1109 | -1.0793 | -1.1902 | 0.3074 | -3.872 | 0.0038 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.34 | 0.05 | -1.916 | 0.171 | -11.183 | 1.0000 |
| FEQG | 0.34 | 97.50 | 5.659 | 0.171 | 33.025 | <0.0001 |
Raw data with supporting information
_sdmn_bde47_au.jpg "Raw data with supporting information for assessment of BDE47 in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_bde47_da.jpg "Raw data with assessment of BDE47 in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_bde47_as.jpg "Assessment plot for BDE47 in sediment at Hunterston (Clyde)")
Organo-bromines data
_sdmn_orgn-bda.jpg "Organo-bromines data for assessment of BDE47 in sediment at Hunterston (Clyde)")
Organo-bromines assessment
_sdmn_orgn-bas.jpg "Organo-bromines assessment of BDE47 in sediment at Hunterston (Clyde)")
Related pages
