CSEMP assessment of fluoranthene in sediment at North Minch
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 60.34 | 61.98 | -27.17 | 54.34 | |||
linear | 2 | 49.93 | 53.13 | -20.96 | 41.93 | 12.413 | 1 | 0.0004 |
smooth (df = 2) | 3 | 45.90 | 51.45 | -17.95 | 35.90 | 6.028 | 1 | 0.0141 |
smooth (df = 3) | 4 | 46.79 | 55.79 | -17.39 | 34.79 | 1.110 | 1 | 0.2921 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2016 | 3.725 | 2.815 | -0.9099 | 0.3186 | -2.856 | 0.0156 |
last 20 years | 1999 | 2016 | 3.725 | 2.815 | -0.9099 | 0.3186 | -2.856 | 0.0156 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 16.7 | 39.0 | 0.849 | 0.322 | 2.633 | 0.0116 |
ERL | 16.7 | 600.0 | 3.582 | 0.322 | 11.114 | <0.0001 |
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 : MinchMalin_TheMinchNorth_se02 (North Minch)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_TheMinchNorth_se02 (North Minch)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020