CSEMP assessment of chrysene in biota at MiddleBankM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 13.41 | 16.41 | -4.70 | 9.41 | |||
linear | 2 | 5.94 | 13.94 | 0.03 | -0.06 | 9.472 | 1 | 0.0021 |
smooth (df = 2) | 3 | 7.49 | 27.49 | 0.25 | -0.51 | 0.443 | 1 | 0.5056 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 2.2191 | 1.0576 | -1.1616 | 0.2605 | -4.459 | 0.0066 |
last 20 years | 2011 | 2018 | 2.2191 | 1.0576 | -1.1616 | 0.2605 | -4.459 | 0.0066 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 2.8794 | 1.3203 | -0.7797 | 0.1613 | -4.835 | 0.9976 |
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_BelfastLoughInnr_sh10 (MiddleBankM)
Determinand : Chrysene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_BelfastLoughInnr_sh10 (MiddleBankM)
Determinand : Chrysene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020