CSEMP assessment of fluoranthene 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 | 70.17 | 72.74 | -32.08 | 64.17 | |||
linear | 2 | 72.13 | 77.47 | -32.07 | 64.13 | 0.034 | 1 | 0.8537 |
smooth (df = 2) | 3 | 73.89 | 83.89 | -31.94 | 63.89 | 0.248 | 1 | 0.6184 |
smooth (df = 3) | 4 | 74.94 | 92.94 | -31.47 | 62.94 | 0.946 | 1 | 0.3308 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 2.1212 | 2.1920 | 0.0708 | 0.3825 | 0.185 | 0.8577 |
last 20 years | 2005 | 2018 | 2.1212 | 2.1920 | 0.0708 | 0.3825 | 0.185 | 0.8577 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 9 | 39 | 1.472 | 0.276 | 5.335 | 0.0003 |
ERL | 9 | 600 | 4.205 | 0.276 | 15.245 | <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_se04 (Fladen Ground)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020