CSEMP assessment of phenanthrene in biota at MiddleBankM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 15.39 | 17.79 | -5.69 | 11.39 | |||
linear | 2 | 16.25 | 22.25 | -5.13 | 10.25 | 1.137 | 1 | 0.2862 |
smooth (df = 2) | 3 | 17.33 | 30.66 | -4.66 | 9.33 | 0.926 | 1 | 0.3359 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 2.2031 | 1.6556 | -0.5474 | 0.4954 | -1.105 | 0.3114 |
last 20 years | 2011 | 2018 | 2.2031 | 1.6556 | -0.5474 | 0.4954 | -1.105 | 0.3114 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 5.24 | 1.79 | -1.072 | 0.296 | -3.622 | 0.9945 |
EAC | 5.24 | 277.10 | 3.969 | 0.296 | 13.414 | <0.0001 |
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_BelfastLoughInnr_sh10 (MiddleBankM)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_BelfastLoughInnr_sh10 (MiddleBankM)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020