CSEMP assessment of phenanthrene 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 | 59.84 | 62.41 | -26.92 | 53.84 | |||
linear | 2 | 60.63 | 65.96 | -26.31 | 52.63 | 1.216 | 1 | 0.2702 |
smooth (df = 2) | 3 | 62.48 | 72.48 | -26.24 | 52.48 | 0.149 | 1 | 0.6994 |
smooth (df = 3) | 4 | 63.63 | 81.63 | -25.81 | 51.63 | 0.848 | 1 | 0.3571 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 1.8109 | 2.4864 | 0.6755 | 0.5950 | 1.135 | 0.2891 |
last 20 years | 2005 | 2018 | 1.8109 | 2.4864 | 0.6755 | 0.5950 | 1.135 | 0.2891 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 12.02 | 32.00 | 0.9794 | 0.4111 | 2.382 | 0.0222 |
ERL | 12.02 | 240.00 | 2.9943 | 0.4111 | 7.284 | <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 : Phenanthrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : Phenanthrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020