CSEMP assessment of c1 phenanthrenes in sediment at Tancred (Forth)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 38.91 | 44.91 | -16.45 | 32.91 | |||
linear | 2 | 40.81 | 56.81 | -16.41 | 32.81 | 0.098 | 1 | 0.7539 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 4.989 | 5.205 | 0.2158 | 0.6798 | 0.317 | 0.7668 |
last 20 years | 2005 | 2018 | 4.989 | 5.205 | 0.2158 | 0.6798 | 0.317 | 0.7668 |
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_LowerForthEstuary_se02, Tancred (Forth)
Determinand : C1 Phenanthrenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : C1 Phenanthrenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020