CSEMP assessment of c1 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 | 145.82 | 148.82 | -69.91 | 139.82 | |||
linear | 2 | 147.82 | 154.22 | -69.91 | 139.82 | 0.006 | 1 | 0.9377 |
smooth (df = 2) | 3 | 149.80 | 162.30 | -69.90 | 139.80 | 0.011 | 1 | 0.9160 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | 3.0862 | 3.0244 | -0.0619 | 0.7901 | -0.078 | 0.9398 |
last 20 years | 2009 | 2018 | 3.0862 | 3.0244 | -0.0619 | 0.7901 | -0.078 | 0.9398 |
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 : C1 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 : C1 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020