CSEMP assessment of anthracene in sediment at Tancred (Forth)
Statistical analysis
Trend assessment
Analysis of variance
| Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
|---|---|---|---|---|---|---|---|---|
| mean | 1 | 36.74 | 42.74 | -15.37 | 30.74 | |||
| linear | 2 | 38.63 | 54.63 | -15.31 | 30.63 | 0.118 | 1 | 0.7317 |
Change in log concentration
| Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
|---|---|---|---|---|---|---|---|---|
| overall | 2005 | 2018 | 3.428 | 3.626 | 0.1976 | 0.5701 | 0.347 | 0.7464 |
| last 20 years | 2005 | 2018 | 3.428 | 3.626 | 0.1976 | 0.5701 | 0.347 | 0.7464 |
Status assessment
| Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
|---|---|---|---|---|---|---|
| BAC | 37.56 | 5.00 | -2.0166 | 0.4380 | -4.604 | 0.9950 |
| ERL | 37.56 | 85.00 | 0.8166 | 0.4380 | 1.865 | 0.0678 |
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for in sediment
- Accessment criteria for in sediment
Media : Sediment (unsieved)
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020