CSEMP assessment of anthracene 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 | 36.74 | 42.74 | -15.37 | 30.74 | |||
linear | 2 | 38.63 | 54.63 | -15.31 | 30.63 | 0.118 | 1 | 0.7317 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 3.428 | 3.626 | 0.1976 | 0.5701 | 0.347 | 0.7464 |
last 20 years | 2005 | 2018 | 3.428 | 3.626 | 0.1976 | 0.5701 | 0.347 | 0.7464 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 37.56 | 5.00 | -2.0166 | 0.4380 | -4.604 | 0.9950 |
ERL | 37.56 | 85.00 | 0.8166 | 0.4380 | 1.865 | 0.0678 |
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (parent) data
PAH (parent) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(parent) in sediment
- Accessment criteria for pah_(parent) in sediment
Media : Sediment (unsieved)
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020