CSEMP assessment of c3 dibenzothiophenes in sediment at Forth Estuary
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 101.81 | 104.81 | -47.91 | 95.81 | |||
linear | 2 | 102.68 | 109.08 | -47.34 | 94.68 | 1.136 | 1 | 0.2864 |
smooth (df = 2) | 3 | 104.60 | 117.10 | -47.30 | 94.60 | 0.081 | 1 | 0.7754 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | 3.184 | 4.617 | 1.4328 | 1.3175 | 1.087 | 0.3129 |
last 20 years | 2009 | 2018 | 3.184 | 4.617 | 1.4328 | 1.3175 | 1.087 | 0.3129 |
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 : Forth_Estuary_seSF (Forth Estuary)
Determinand : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_Estuary_seSF (Forth Estuary)
Determinand : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020