CSEMP assessment of BD153 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 | 100.88 | 103.45 | -47.44 | 94.88 | | | |
| linear | 2 | 100.71 | 106.04 | -46.35 | 92.71 | 2.174 | 1 | 0.1404 |
| smooth (df = 2) | 3 | 102.69 | 112.69 | -46.34 | 92.69 | 0.019 | 1 | 0.8901 |
| smooth (df = 3) | 4 | 104.69 | 122.69 | -46.34 | 92.69 | 0.000 | 1 | 0.9849 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2017 | -1.1983 | -1.8755 | -0.6772 | 0.4453 | -1.521 | 0.1668 |
| last 20 years | 2008 | 2017 | -1.1983 | -1.8755 | -0.6772 | 0.4453 | -1.521 | 0.1668 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.2 | 0.0 | -1.120 | 0.242 | -4.622 | 0.9991 |
| FEQG | 0.2 | 1100.0 | 8.879 | 0.242 | 36.635 | <0.0001 |
Raw data with supporting information
_sdmn_bd153_au.jpg "Raw data with supporting information for assessment of BD153 in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_bd153_da.jpg "Raw data with assessment of BD153 in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_bd153_as.jpg "Assessment plot for BD153 in sediment at Hunterston (Clyde)")
Organo-bromines data
_sdmn_orgn-bda.jpg "Organo-bromines data for assessment of BD153 in sediment at Hunterston (Clyde)")
Organo-bromines assessment
_sdmn_orgn-bas.jpg "Organo-bromines assessment of BD153 in sediment at Hunterston (Clyde)")
Related pages
