CSEMP assessment of fluoranthene in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 158.98 | 160.48 | -76.49 | 152.98 | |||
linear | 2 | 156.25 | 159.16 | -74.12 | 148.25 | 4.733 | 1 | 0.0296 |
smooth (df = 2) | 3 | 156.57 | 161.57 | -73.28 | 146.57 | 1.682 | 1 | 0.1947 |
smooth (df = 3) | 4 | 153.83 | 161.83 | -70.91 | 141.83 | 4.739 | 1 | 0.0295 |
smooth (df = 4) | 5 | 155.54 | 167.79 | -70.77 | 141.54 | 0.291 | 1 | 0.5897 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2003 | 2018 | 5.339 | 6.497 | 1.1580 | 0.4911 | 2.358 | 0.0347 |
last 20 years | 2003 | 2018 | 5.339 | 6.497 | 1.1580 | 0.4911 | 2.358 | 0.0347 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 663.2 | 39.0 | -2.8335 | 0.2737 | -10.354 | 1.0000 |
ERL | 663.2 | 600.0 | -0.1001 | 0.2737 | -0.366 | 0.6398 |
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 : Firth_of_Clyde_(inner)_seSF, inner (Firth of Clyde)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Firth_of_Clyde_(inner)_seSF, inner (Firth of Clyde)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020