CSEMP assessment of fluoranthene in biota at Conwy Sands (Conwy Bay)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 11.57 | 20.57 | -2.79 | 5.57 | |||
linear | 2 | 13.04 | 45.04 | -2.52 | 5.04 | 0.529 | 1 | 0.4672 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2012 | 2018 | 1.3051 | 1.7149 | 0.4098 | 0.5522 | 0.742 | 0.5119 |
last 20 years | 2012 | 2018 | 1.3051 | 1.7149 | 0.4098 | 0.5522 | 0.742 | 0.5119 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 5.556 | 1.989 | -1.0275 | 0.3776 | -2.721 | 0.9637 |
EAC | 5.556 | 17.930 | 1.1716 | 0.3776 | 3.102 | 0.0266 |
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (parent) data
PAH (parent) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(parent) in biota
- Accessment criteria for pah_(parent) in biota
Media : Biota (Blue mussel soft body)
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : Fluoranthene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : Fluoranthene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020