CSEMP assessment of anthracene in biota at Crosby (Mersey Channel)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 43.55 | 49.55 | -18.77 | 37.55 | |||
linear | 2 | 45.24 | 61.24 | -18.62 | 37.24 | 0.302 | 1 | 0.5826 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2003 | 2018 | -0.18790 | 0.12105 | 0.3089 | 0.5597 | 0.552 | 0.6104 |
last 20 years | 2003 | 2018 | -0.18790 | 0.12105 | 0.3089 | 0.5597 | 0.552 | 0.6104 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
EAC | 1.13 | 47.27 | 3.735 | 0.254 | 14.684 | <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_LiverpoolBay_sh01, Crosby (Mersey Channel)
Determinand : Anthracene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_LiverpoolBay_sh01, Crosby (Mersey Channel)
Determinand : Anthracene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020