CSEMP assessment of BD100 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 | 36.71 | 45.71 | -15.35 | 30.71 | |||
linear | 2 | 36.37 | 68.37 | -14.19 | 28.37 | 2.339 | 1 | 0.1262 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | -2.509 | -3.310 | -0.8014 | 0.5010 | -1.600 | 0.2080 |
last 20 years | 2009 | 2018 | -2.509 | -3.310 | -0.8014 | 0.5010 | -1.600 | 0.2080 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.0365 | 0.0500 | 0.314 | 0.321 | 0.977 | 0.2002 |
FEQG | 0.0365 | 1.0000 | 3.310 | 0.321 | 10.298 | 0.0010 |
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 : BD100
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 : BD100
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020