CSEMP assessment of BDE47 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 21.07 | 27.07 | -7.54 | 15.07 | |||
linear | 2 | 21.09 | 37.09 | -6.54 | 13.09 | 1.986 | 1 | 0.1587 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | -0.7024 | -0.9622 | -0.25983 | 0.18008 | -1.443 | 0.2225 |
last 20 years | 2009 | 2018 | -0.7024 | -0.9622 | -0.25983 | 0.18008 | -1.443 | 0.2225 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.38 | 0.05 | -2.034 | 0.105 | -19.423 | 1.0000 |
FEQG | 0.38 | 97.50 | 5.542 | 0.105 | 52.936 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for organo-bromines in sediment
- Accessment criteria for organo-bromines in sediment
Media : Sediment (unsieved)
Station : Firth_of_Clyde_(inner)_seSF, inner (Firth of Clyde)
Determinand : BDE47
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Firth_of_Clyde_(inner)_seSF, inner (Firth of Clyde)
Determinand : BDE47
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020