CSEMP assessment of phenanthrene in biota at Tynemouth
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 23.18 | 25.18 | -9.59 | 19.18 | |||
linear | 2 | 24.63 | 29.43 | -9.32 | 18.63 | 0.549 | 1 | 0.4587 |
smooth (df = 2) | 3 | 26.55 | 36.55 | -9.28 | 18.55 | 0.081 | 1 | 0.7762 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2007 | 2018 | 1.6331 | 1.0431 | -0.5900 | 0.7842 | -0.752 | 0.4764 |
last 20 years | 2007 | 2018 | 1.6331 | 1.0431 | -0.5900 | 0.7842 | -0.752 | 0.4764 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 2.84 | 1.79 | -0.459 | 0.526 | -0.872 | 0.7940 |
EAC | 2.84 | 277.10 | 4.581 | 0.526 | 8.703 | <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 : Forth_NorthBerwickBarnsN_sh01 (Tynemouth)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : Forth_NorthBerwickBarnsN_sh01 (Tynemouth)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020