CSEMP assessment of c2 dibenzothiophene in sediment at inner (Firth of Forth)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 138.64 | 141.64 | -66.32 | 132.64 | |||
linear | 2 | 140.62 | 147.02 | -66.31 | 132.62 | 0.022 | 1 | 0.8827 |
smooth (df = 2) | 3 | 140.51 | 153.01 | -65.25 | 130.51 | 2.108 | 1 | 0.1465 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | 3.559 | 3.636 | 0.0768 | 0.5199 | 0.148 | 0.8868 |
last 20 years | 2009 | 2018 | 3.559 | 3.636 | 0.0768 | 0.5199 | 0.148 | 0.8868 |
Status assessment
No assessment criteria
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (alkylated) data
PAH (alkylated) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(alkylated) in sediment
- Accessment criteria for pah_(alkylated) in sediment
Media : Sediment (unsieved)
Station : Firth_of_Forth_(inner)_seSF, inner (Firth of Forth)
Determinand : C2 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Firth_of_Forth_(inner)_seSF, inner (Firth of Forth)
Determinand : C2 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020