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 | 111.18 | 113.43 | -52.59 | 105.18 | | | |
| linear | 2 | 109.61 | 114.18 | -50.80 | 101.61 | 3.569 | 1 | 0.0589 |
| smooth (df = 2) | 3 | 111.61 | 119.94 | -50.80 | 101.61 | 0.001 | 1 | 0.9756 |
| smooth (df = 3) | 4 | 113.59 | 127.99 | -50.79 | 101.59 | 0.021 | 1 | 0.8846 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2018 | -1.1716 | -1.9625 | -0.7909 | 0.3993 | -1.981 | 0.0789 |
| last 20 years | 2008 | 2018 | -1.1716 | -1.9625 | -0.7909 | 0.3993 | -1.981 | 0.0789 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1 | 0.0 | -1.033 | 0.215 | -4.808 | 0.9995 |
| FEQG | 0.1 | 1100.0 | 8.966 | 0.215 | 41.718 | <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
