CSEMP assessment of BD183 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 | 41.32 | 50.32 | -17.66 | 35.32 | |||
linear | 2 | 43.20 | 75.20 | -17.60 | 35.20 | 0.119 | 1 | 0.7304 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | -4.186 | -4.517 | -0.3310 | 0.9517 | -0.348 | 0.7510 |
last 20 years | 2009 | 2018 | -4.186 | -4.517 | -0.3310 | 0.9517 | -0.348 | 0.7510 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0 | 0 | 1.521 | 0.558 | 2.724 | 0.0362 |
FEQG | 0 | 14000 | 14.064 | 0.558 | 25.182 | <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 : BD183
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 : BD183
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020