CSEMP assessment of fluoranthene in biota at New Brighton (Mersey)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | -5.61 | -2.01 | 5.81 | -11.61 | |||
linear | 2 | -5.35 | 2.65 | 6.67 | -13.35 | 1.733 | 1 | 0.1880 |
smooth (df = 2) | 3 | -3.87 | 12.80 | 6.93 | -13.87 | 0.523 | 1 | 0.4694 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2002 | 2018 | 2.3925 | 2.0568 | -0.3357 | 0.2458 | -1.366 | 0.2211 |
last 20 years | 2002 | 2018 | 2.3925 | 2.0568 | -0.3357 | 0.2458 | -1.366 | 0.2211 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 7.821 | 1.989 | -1.3693 | 0.1445 | -9.476 | 1.0000 |
EAC | 7.821 | 17.930 | 0.8297 | 0.1445 | 5.741 | 0.0006 |
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_Mersey_sh01, New Brighton (Mersey)
Determinand : Fluoranthene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Mersey_sh01, New Brighton (Mersey)
Determinand : Fluoranthene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020