CSEMP assessment of chrysene 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 | 13.35 | 19.35 | -3.68 | 7.35 | |||
linear | 2 | 14.38 | 30.38 | -3.19 | 6.38 | 0.970 | 1 | 0.3248 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2002 | 2018 | 2.0948 | 0.7633 | -1.3315 | 1.2774 | -1.042 | 0.3561 |
last 20 years | 2002 | 2018 | 2.0948 | 0.7633 | -1.3315 | 1.2774 | -1.042 | 0.3561 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 2.1454 | 1.3203 | -0.4855 | 0.5905 | -0.822 | 0.7714 |
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 : Chrysene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Mersey_sh01, New Brighton (Mersey)
Determinand : Chrysene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020