CSEMP assessment of CB138 in biota at Camarthen Bay
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 10.56 | 14.16 | -2.28 | 4.56 | |||
linear | 2 | 10.77 | 18.77 | -1.39 | 2.77 | 1.784 | 1 | 0.1816 |
smooth (df = 2) | 3 | 11.79 | 28.45 | -0.89 | 1.79 | 0.988 | 1 | 0.3203 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2004 | 2014 | 3.173 | 2.721 | -0.4524 | 0.3204 | -1.412 | 0.2077 |
last 20 years | 2004 | 2014 | 3.173 | 2.721 | -0.4524 | 0.3204 | -1.412 | 0.2077 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 15.20 | 0.09 | -5.129 | 0.205 | -25.034 | 1.0000 |
EAC | 15.20 | 62.13 | 1.408 | 0.205 | 6.873 | 0.0002 |
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 (Common dab liver)
Station : Severn_SeInter_fi01 (Camarthen Bay)
Determinand : CB138
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : Severn_SeInter_fi01 (Camarthen Bay)
Determinand : CB138
Units : μg kg-1 wet weight
Data extraction : 30 April 2020