CSEMP assessment of BD154 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 | 58.22 | 61.22 | -26.11 | 52.22 | | | |
| linear | 2 | 52.46 | 58.86 | -22.23 | 44.46 | 7.761 | 1 | 0.0053 |
| smooth (df = 2) | 3 | 52.90 | 65.40 | -21.45 | 42.90 | 1.560 | 1 | 0.2117 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2009 | 2018 | -2.0691 | -3.0635 | -0.9944 | 0.2703 | -3.679 | 0.0079 |
| last 20 years | 2009 | 2018 | -2.0691 | -3.0635 | -0.9944 | 0.2703 | -3.679 | 0.0079 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0 | 0 | 0.068 | 0.160 | 0.423 | 0.3426 |
| FEQG | 0 | 1100 | 10.067 | 0.160 | 62.830 | <0.0001 |
Raw data with supporting information
_sdmn_bd154_au.jpg "Raw data with supporting information for assessment of BD154 in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_bd154_da.jpg "Raw data with assessment of BD154 in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_bd154_as.jpg "Assessment plot for BD154 in sediment at Hunterston (Clyde)")
Organo-bromines data
_sdmn_orgn-bda.jpg "Organo-bromines data for assessment of BD154 in sediment at Hunterston (Clyde)")
Organo-bromines assessment
_sdmn_orgn-bas.jpg "Organo-bromines assessment of BD154 in sediment at Hunterston (Clyde)")
Related pages
