CSEMP assessment of CB28 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 | 11.08 | 17.08 | -2.54 | 5.08 | |||
linear | 2 | 13.07 | 29.07 | -2.53 | 5.07 | 0.012 | 1 | 0.9132 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2002 | 2018 | -0.9994 | -1.0288 | -0.02943 | 0.26835 | -0.110 | 0.9180 |
last 20 years | 2002 | 2018 | -0.9994 | -1.0288 | -0.02943 | 0.26835 | -0.110 | 0.9180 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.3574 | 0.1223 | -1.0729 | 0.1360 | -7.891 | 0.9993 |
EAC | 0.3574 | 0.8710 | 0.8907 | 0.1360 | 6.551 | 0.0014 |
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 : CB28
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Mersey_sh01, New Brighton (Mersey)
Determinand : CB28
Units : μg kg-1 wet weight
Data extraction : 30 April 2020