CSEMP assessment of CB52 in biota at New Brighton (Mersey)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 17.49 | 23.49 | -5.75 | 11.49 | |||
linear | 2 | 18.28 | 34.28 | -5.14 | 10.28 | 1.219 | 1 | 0.2696 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2002 | 2018 | -0.9383 | -0.2834 | 0.6549 | 0.5880 | 1.114 | 0.3278 |
last 20 years | 2002 | 2018 | -0.9383 | -0.2834 | 0.6549 | 0.5880 | 1.114 | 0.3278 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.7532 | 0.1223 | -1.8183 | 0.3377 | -5.384 | 0.9971 |
EAC | 0.7532 | 1.4040 | 0.6227 | 0.3377 | 1.844 | 0.0695 |
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 biota
- Accessment criteria for chlorobiphenyls in biota
Media : Biota (Blue mussel soft body)
Station : IrishSea_Mersey_sh01, New Brighton (Mersey)
Determinand : CB52
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Mersey_sh01, New Brighton (Mersey)
Determinand : CB52
Units : μg kg-1 wet weight
Data extraction : 30 April 2020