CSEMP assessment of CB101 in biota at Tees Bay
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 106.83 | 109.83 | -50.41 | 100.83 | |||
linear | 2 | 106.35 | 112.75 | -49.18 | 98.35 | 2.476 | 1 | 0.1156 |
smooth (df = 2) | 3 | 107.59 | 120.09 | -48.80 | 97.59 | 0.758 | 1 | 0.3841 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2001 | 2017 | -0.8751 | 0.2153 | 1.0904 | 0.6727 | 1.621 | 0.1491 |
last 20 years | 2001 | 2017 | -0.8751 | 0.2153 | 1.0904 | 0.6727 | 1.621 | 0.1491 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 1.240 | 0.080 | -2.7411 | 0.3673 | -7.463 | 0.9999 |
EAC | 1.240 | 23.716 | 2.9508 | 0.3673 | 8.034 | <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 (Common dab liver)
Station : TyneTees_TTInter_fi03 (Tees Bay)
Determinand : CB101
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : TyneTees_TTInter_fi03 (Tees Bay)
Determinand : CB101
Units : μg kg-1 wet weight
Data extraction : 30 April 2020