CSEMP assessment of BD153 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 | 51.07 | 57.07 | -22.53 | 45.07 | |||
linear | 2 | 51.11 | 67.11 | -21.55 | 43.11 | 1.956 | 1 | 0.1619 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | -1.6780 | -2.1661 | -0.4881 | 0.3465 | -1.409 | 0.2317 |
last 20 years | 2009 | 2018 | -1.6780 | -2.1661 | -0.4881 | 0.3465 | -1.409 | 0.2317 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.1 | 0.0 | -0.830 | 0.210 | -3.955 | 0.9916 |
FEQG | 0.1 | 1100.0 | 9.169 | 0.210 | 43.709 | <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 : BD153
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 : BD153
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020