CSEMP assessment of fluoranthene 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 | 113.53 | 114.92 | -53.77 | 107.53 | |||
linear | 2 | 114.90 | 117.56 | -53.45 | 106.90 | 0.637 | 1 | 0.4246 |
smooth (df = 2) | 3 | 114.31 | 118.86 | -52.16 | 104.31 | 2.581 | 1 | 0.1082 |
smooth (df = 3) | 4 | 116.22 | 123.42 | -52.11 | 104.22 | 0.090 | 1 | 0.7636 |
smooth (df = 4) | 5 | 118.21 | 129.10 | -52.11 | 104.21 | 0.013 | 1 | 0.9106 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2000 | 2018 | 5.772 | 5.319 | -0.4524 | 0.5596 | -0.808 | 0.4324 |
last 20 years | 2000 | 2018 | 5.772 | 5.319 | -0.4524 | 0.5596 | -0.808 | 0.4324 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 204.3 | 39.0 | -1.6559 | 0.2851 | -5.809 | 1.0000 |
ERL | 204.3 | 600.0 | 1.0775 | 0.2851 | 3.780 | 0.0010 |
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_Estuary_seSF (Forth Estuary)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_Estuary_seSF (Forth Estuary)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020