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 | 86.17 | 88.74 | -40.08 | 80.17 | | | |
| linear | 2 | 77.29 | 82.62 | -34.65 | 69.29 | 10.875 | 1 | 0.0010 |
| smooth (df = 2) | 3 | 76.51 | 86.51 | -33.26 | 66.51 | 2.781 | 1 | 0.0954 |
| smooth (df = 3) | 4 | 76.15 | 94.15 | -32.08 | 64.15 | 2.358 | 1 | 0.1247 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2017 | -0.9606 | -2.2109 | -1.2502 | 0.3100 | -4.033 | 0.0038 |
| last 20 years | 2008 | 2017 | -0.9606 | -2.2109 | -1.2502 | 0.3100 | -4.033 | 0.0038 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.11 | 0.05 | -0.785 | 0.178 | -4.399 | 0.9989 |
| FEQG | 0.11 | 97.50 | 6.791 | 0.178 | 38.064 | <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
