CSEMP assessment of c1 phenanthrenes 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 | 141.23 | 144.23 | -67.62 | 135.23 | |||
linear | 2 | 143.22 | 149.62 | -67.61 | 135.22 | 0.010 | 1 | 0.9195 |
smooth (df = 2) | 3 | 145.19 | 157.69 | -67.59 | 135.19 | 0.036 | 1 | 0.8491 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2009 | 2018 | 4.904 | 4.974 | 0.0705 | 0.6959 | 0.101 | 0.9221 |
last 20 years | 2009 | 2018 | 4.904 | 4.974 | 0.0705 | 0.6959 | 0.101 | 0.9221 |
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 Phenanthrenes
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 Phenanthrenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020