CSEMP assessment of benzo[a]pyrene in biota at Off Boston (Wash)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 29.83 | 38.83 | -11.91 | 23.83 | |||
linear | 2 | 31.76 | 63.76 | -11.88 | 23.76 | 0.071 | 1 | 0.7905 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2003 | 2018 | -0.4035 | -0.1396 | 0.2639 | 0.9897 | 0.267 | 0.8070 |
last 20 years | 2003 | 2018 | -0.4035 | -0.1396 | 0.2639 | 0.9897 | 0.267 | 0.8070 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.87 | 0.23 | -1.338 | 0.588 | -2.274 | 0.9462 |
EAC | 0.87 | 97.80 | 4.723 | 0.588 | 8.027 | 0.0020 |
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 : HumWash_Witham_sh01, Off Boston (Wash)
Determinand : Benzo[a]pyrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : HumWash_Witham_sh01, Off Boston (Wash)
Determinand : Benzo[a]pyrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020