CSEMP assessment of phenanthrene in biota at Forth estuary @ Blackness
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 12.45 | 15.02 | -3.22 | 6.45 | |||
linear | 2 | 8.35 | 13.68 | -0.18 | 0.35 | 6.097 | 1 | 0.0135 |
smooth (df = 2) | 3 | 10.29 | 20.29 | -0.15 | 0.29 | 0.059 | 1 | 0.8086 |
smooth (df = 3) | 4 | 6.79 | 24.79 | 2.61 | -5.21 | 5.506 | 1 | 0.0189 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2001 | 2014 | 2.1510 | 1.1859 | -0.9651 | 0.3276 | -2.946 | 0.0185 |
last 20 years | 2001 | 2014 | 2.1510 | 1.1859 | -0.9651 | 0.3276 | -2.946 | 0.0185 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 3.27 | 1.79 | -0.602 | 0.158 | -3.809 | 0.9974 |
EAC | 3.27 | 277.10 | 4.438 | 0.158 | 28.080 | <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_LowerForthEstuary_sh01 (Forth estuary @ Blackness)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : Forth_LowerForthEstuary_sh01 (Forth estuary @ Blackness)
Determinand : Phenanthrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020