CSEMP assessment of BDE66 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 | 32.24 | 38.24 | -13.12 | 26.24 | |||
linear | 2 | 34.08 | 50.08 | -13.04 | 26.08 | 0.159 | 1 | 0.6903 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | -2.4860 | -2.6233 | -0.1373 | 0.3445 | -0.399 | 0.7105 |
last 20 years | 2009 | 2018 | -2.4860 | -2.6233 | -0.1373 | 0.3445 | -0.399 | 0.7105 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.07 | 0.05 | -0.372 | 0.207 | -1.796 | 0.9265 |
FEQG | 0.07 | 97.50 | 7.203 | 0.207 | 34.730 | <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 : BDE66
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 : BDE66
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020