CSEMP assessment of anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 38.55 | 47.55 | -16.27 | 32.55 | |||
linear | 2 | 40.37 | 72.37 | -16.19 | 32.37 | 0.173 | 1 | 0.6779 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2003 | 2013 | 4.101 | 4.338 | 0.2371 | 0.5654 | 0.419 | 0.7032 |
last 20 years | 2003 | 2013 | 4.101 | 4.338 | 0.2371 | 0.5654 | 0.419 | 0.7032 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 76.55 | 5.00 | -2.7286 | 0.4173 | -6.538 | 0.9964 |
ERL | 76.55 | 85.00 | 0.1047 | 0.4173 | 0.251 | 0.4091 |
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 sediment
- Accessment criteria for pah_(parent) in sediment
Media : Sediment (unsieved)
Station : Clyde_FirthCInnerCumbraes_se01 (Inner Firth of Clyde, Nth of Cumbrae)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Clyde_FirthCInnerCumbraes_se01 (Inner Firth of Clyde, Nth of Cumbrae)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020