CSEMP assessment of fluoranthene in sediment at Skelmorlie (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 53.15 | 54.95 | -23.57 | 47.15 | |||
linear | 2 | 53.94 | 57.50 | -22.97 | 45.94 | 1.209 | 1 | 0.2715 |
smooth (df = 2) | 3 | 55.63 | 61.88 | -22.81 | 45.63 | 0.312 | 1 | 0.5762 |
smooth (df = 3) | 4 | 56.60 | 66.88 | -22.30 | 44.60 | 1.028 | 1 | 0.3105 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2000 | 2013 | 6.045 | 5.721 | -0.3246 | 0.2918 | -1.112 | 0.2897 |
last 20 years | 2000 | 2013 | 6.045 | 5.721 | -0.3246 | 0.2918 | -1.112 | 0.2897 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 305.1 | 39.0 | -2.0570 | 0.1760 | -11.690 | 1.0000 |
ERL | 305.1 | 600.0 | 0.6764 | 0.1760 | 3.844 | 0.0014 |
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 : Clyde_FirthCInnerCumbraes_se02, Skelmorlie (Clyde)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Clyde_FirthCInnerCumbraes_se02, Skelmorlie (Clyde)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020