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 | 96.84 | 99.41 | -45.42 | 90.84 | | | |
| linear | 2 | 89.73 | 95.07 | -40.87 | 81.73 | 9.109 | 1 | 0.0025 |
| smooth (df = 2) | 3 | 89.62 | 99.62 | -39.81 | 79.62 | 2.113 | 1 | 0.1461 |
| smooth (df = 3) | 4 | 89.74 | 107.74 | -38.87 | 77.74 | 1.881 | 1 | 0.1703 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2017 | 0.1155 | -0.9715 | -1.087 | 0.339 | -3.207 | 0.0125 |
| last 20 years | 2008 | 2017 | 0.1155 | -0.9715 | -1.087 | 0.339 | -3.207 | 0.0125 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.38 | 0.05 | -2.024 | 0.192 | -10.548 | 1.0000 |
| FEQG | 0.38 | 97.50 | 5.551 | 0.192 | 28.929 | <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
