CSEMP assessment of BD209 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 | 34.49 | 43.49 | -14.25 | 28.49 | |||
linear | 2 | 36.00 | 68.00 | -14.00 | 28.00 | 0.496 | 1 | 0.4814 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2012 | 2018 | 3.957 | 3.676 | -0.2806 | 0.3412 | -0.823 | 0.4710 |
last 20 years | 2012 | 2018 | 3.957 | 3.676 | -0.2806 | 0.3412 | -0.823 | 0.4710 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 39.51 | 0.05 | -6.672 | 0.224 | -29.829 | 1.0000 |
FEQG | 39.51 | 47.50 | 0.184 | 0.224 | 0.824 | 0.2352 |
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_(middle)_seSF, middle (Firth of Clyde)
Determinand : BD209
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Firth_of_Clyde_(middle)_seSF, middle (Firth of Clyde)
Determinand : BD209
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020