CSEMP assessment of BD153 in sediment at middle (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 60.61 | 65.11 | -27.31 | 54.61 | | | |
| linear | 2 | 62.49 | 73.16 | -27.25 | 54.49 | 0.119 | 1 | 0.7300 |
| smooth (df = 2) | 3 | 62.04 | 87.04 | -26.02 | 52.04 | 2.450 | 1 | 0.1175 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2009 | 2018 | -2.7786 | -2.5964 | 0.1822 | 0.5138 | 0.355 | 0.7374 |
| last 20 years | 2009 | 2018 | -2.7786 | -2.5964 | 0.1822 | 0.5138 | 0.355 | 0.7374 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.1 | 0.0 | -0.399 | 0.287 | -1.393 | 0.8888 |
| FEQG | 0.1 | 1100.0 | 9.599 | 0.287 | 33.489 | <0.0001 |
Raw data with supporting information
__sdmn_bd153_au.jpg "Raw data with supporting information for assessment of BD153 in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_bd153_da.jpg "Raw data with assessment of BD153 in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_bd153_as.jpg "Assessment plot for BD153 in sediment at middle (Firth of Clyde)")
Organo-bromines data
__sdmn_orgn-bda.jpg "Organo-bromines data for assessment of BD153 in sediment at middle (Firth of Clyde)")
Organo-bromines assessment
__sdmn_orgn-bas.jpg "Organo-bromines assessment of BD153 in sediment at middle (Firth of Clyde)")
Related pages
