CSEMP assessment of anthracene in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 46.18 | 48.75 | -20.09 | 40.18 | |||
linear | 2 | 47.52 | 52.86 | -19.76 | 39.52 | 0.658 | 1 | 0.4173 |
smooth (df = 2) | 3 | 48.56 | 58.56 | -19.28 | 38.56 | 0.965 | 1 | 0.3258 |
smooth (df = 3) | 4 | 50.55 | 68.55 | -19.27 | 38.55 | 0.009 | 1 | 0.9232 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | -0.29242 | 0.05909 | 0.3515 | 0.4291 | 0.819 | 0.4364 |
last 20 years | 2005 | 2018 | -0.29242 | 0.05909 | 0.3515 | 0.4291 | 0.819 | 0.4364 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 1.06 | 5.00 | 1.550 | 0.297 | 5.219 | 0.0004 |
ERL | 1.06 | 85.00 | 4.384 | 0.297 | 14.756 | <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 : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020