CSEMP assessment of CB153 in biota at Off Boston (Wash)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 12.71 | 16.31 | -3.35 | 6.71 | |||
linear | 2 | 10.22 | 18.22 | -1.11 | 2.22 | 4.488 | 1 | 0.0341 |
smooth (df = 2) | 3 | 8.67 | 25.33 | 0.67 | -1.33 | 3.552 | 1 | 0.0595 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2018 | -0.3201 | -0.9873 | -0.6673 | 0.2790 | -2.392 | 0.0539 |
last 20 years | 1999 | 2018 | -0.3201 | -0.9873 | -0.6673 | 0.2790 | -2.392 | 0.0539 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.373 | 0.098 | -1.338 | 0.168 | -7.942 | 0.9999 |
EAC | 0.373 | 20.605 | 4.013 | 0.168 | 23.829 | <0.0001 |
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 : HumWash_Witham_sh01, Off Boston (Wash)
Determinand : CB153
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : HumWash_Witham_sh01, Off Boston (Wash)
Determinand : CB153
Units : μg kg-1 wet weight
Data extraction : 30 April 2020