CSEMP assessment of CB52 in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 68.10 | 74.10 | -31.05 | 62.10 | |||
linear | 2 | 68.96 | 84.96 | -30.48 | 60.96 | 1.139 | 1 | 0.2860 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | -2.2534 | -0.7070 | 1.5465 | 1.2695 | 1.218 | 0.2901 |
last 20 years | 2005 | 2018 | -2.2534 | -0.7070 | 1.5465 | 1.2695 | 1.218 | 0.2901 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.4931 | 0.1200 | -1.4133 | 0.9045 | -1.562 | 0.9034 |
EAC | 0.4931 | 2.7000 | 1.7002 | 0.9045 | 1.880 | 0.0667 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for chlorobiphenyls in sediment
- Accessment criteria for chlorobiphenyls in sediment
Media : Sediment (unsieved)
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : CB52
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : CB52
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020