CSEMP assessment of fluoranthene in biota at Mostyn Bank (Dee)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 74.26 | 76.83 | -34.13 | 68.26 | |||
linear | 2 | 75.06 | 80.39 | -33.53 | 67.06 | 1.196 | 1 | 0.2741 |
smooth (df = 2) | 3 | 73.62 | 83.62 | -31.81 | 63.62 | 3.440 | 1 | 0.0636 |
smooth (df = 3) | 4 | 75.32 | 93.32 | -31.66 | 63.32 | 0.301 | 1 | 0.5830 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2018 | 1.9536 | 1.0749 | -0.8787 | 0.7832 | -1.122 | 0.2945 |
last 20 years | 1999 | 2018 | 1.9536 | 1.0749 | -0.8787 | 0.7832 | -1.122 | 0.2945 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 2.930 | 1.989 | -0.3874 | 0.5218 | -0.742 | 0.7605 |
EAC | 2.930 | 17.930 | 1.8116 | 0.5218 | 3.472 | 0.0042 |
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_DeeNWales_sh01, Mostyn Bank (Dee)
Determinand : Fluoranthene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_DeeNWales_sh01, Mostyn Bank (Dee)
Determinand : Fluoranthene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020