CSEMP assessment of c3 dibenzothiophenes 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 | 134.06 | 137.06 | -64.03 | 128.06 | |||
linear | 2 | 135.14 | 141.54 | -63.57 | 127.14 | 0.922 | 1 | 0.3369 |
smooth (df = 2) | 3 | 134.56 | 147.06 | -62.28 | 124.56 | 2.579 | 1 | 0.1083 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | 3.852 | 3.355 | -0.4972 | 0.5030 | -0.989 | 0.3558 |
last 20 years | 2009 | 2018 | 3.852 | 3.355 | -0.4972 | 0.5030 | -0.989 | 0.3558 |
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 : C3 Dibenzothiophenes
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 : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020