CSEMP assessment of BDE47 in sediment at outer (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 68.00 | 74.00 | -31.00 | 62.00 | |||
linear | 2 | 69.23 | 85.23 | -30.61 | 61.23 | 0.774 | 1 | 0.3789 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2008 | 2017 | -2.9312 | -2.3059 | 0.6253 | 0.6840 | 0.914 | 0.4124 |
last 20 years | 2008 | 2017 | -2.9312 | -2.3059 | 0.6253 | 0.6840 | 0.914 | 0.4124 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.10 | 0.05 | -0.690 | 0.423 | -1.630 | 0.9108 |
FEQG | 0.10 | 97.50 | 6.886 | 0.423 | 16.271 | <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_(outer)_seSF, outer (Firth of Clyde)
Determinand : BDE47
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Firth_of_Clyde_(outer)_seSF, outer (Firth of Clyde)
Determinand : BDE47
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020