CSEMP assessment of benzo[a]pyrene in biota at NarrowWaterM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 2.01 | 5.01 | 1.00 | -1.99 | |||
linear | 2 | 0.38 | 8.38 | 2.81 | -5.62 | 3.627 | 1 | 0.0568 |
smooth (df = 2) | 3 | 2.20 | 22.20 | 2.90 | -5.80 | 0.179 | 1 | 0.6721 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 1.6542 | 1.1183 | -0.5359 | 0.2814 | -1.905 | 0.1152 |
last 20 years | 2011 | 2018 | 1.6542 | 1.1183 | -0.5359 | 0.2814 | -1.905 | 0.1152 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 3.06 | 0.23 | -2.596 | 0.174 | -14.905 | 1.0000 |
EAC | 3.06 | 97.80 | 3.465 | 0.174 | 19.893 | <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_NewryEstuary_sh01 (NarrowWaterM)
Determinand : Benzo[a]pyrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_NewryEstuary_sh01 (NarrowWaterM)
Determinand : Benzo[a]pyrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020