CSEMP assessment of BD209 in sediment at Hunterston (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 77.45 | 83.45 | -35.72 | 71.45 | |||
linear | 2 | 79.40 | 95.40 | -35.70 | 71.40 | 0.045 | 1 | 0.8327 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2012 | 2018 | 3.598 | 3.507 | -0.0909 | 0.4299 | -0.212 | 0.8428 |
last 20 years | 2012 | 2018 | 3.598 | 3.507 | -0.0909 | 0.4299 | -0.212 | 0.8428 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 33.36 | 0.05 | -6.503 | 0.274 | -23.741 | 1.0000 |
FEQG | 33.36 | 47.50 | 0.353 | 0.274 | 1.290 | 0.1332 |
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 : Clyde_(Hunterston)_seSF, Hunterston (Clyde)
Determinand : BD209
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Clyde_(Hunterston)_seSF, Hunterston (Clyde)
Determinand : BD209
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020