CSEMP assessment of phenanthrene in biota at NarrowWaterM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 18.51 | 20.91 | -7.26 | 14.51 | |||
linear | 2 | 19.05 | 25.05 | -6.53 | 13.05 | 1.458 | 1 | 0.2273 |
smooth (df = 2) | 3 | 16.13 | 29.46 | -4.07 | 8.13 | 4.923 | 1 | 0.0265 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 1.8459 | 2.5940 | 0.7481 | 0.5913 | 1.265 | 0.2527 |
last 20 years | 2011 | 2018 | 1.8459 | 2.5940 | 0.7481 | 0.5913 | 1.265 | 0.2527 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 13.38 | 1.79 | -2.0102 | 0.3532 | -5.691 | 0.9994 |
EAC | 13.38 | 277.10 | 3.0303 | 0.3532 | 8.580 | <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_NewryEstuary_sh01 (NarrowWaterM)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_NewryEstuary_sh01 (NarrowWaterM)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020