CSEMP assessment of fluoranthene in sediment at Bann Estuary
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 253.95 | 255.75 | -123.97 | 247.95 | |||
linear | 2 | 255.87 | 259.42 | -123.93 | 247.87 | 0.081 | 1 | 0.7764 |
smooth (df = 2) | 3 | 255.52 | 261.77 | -122.76 | 245.52 | 2.345 | 1 | 0.1257 |
smooth (df = 3) | 4 | 256.05 | 266.33 | -122.02 | 244.05 | 1.477 | 1 | 0.2242 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2000 | 2018 | 5.062 | 4.793 | -0.2685 | 0.9424 | -0.285 | 0.7810 |
last 20 years | 2000 | 2018 | 5.062 | 4.793 | -0.2685 | 0.9424 | -0.285 | 0.7810 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 120.7 | 39.0 | -1.1297 | 0.5392 | -2.095 | 0.9700 |
ERL | 120.7 | 600.0 | 1.6037 | 0.5392 | 2.974 | 0.0063 |
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 (< 63 micron fraction)
Station : MinchMalin_BannEstuary_se01 (Bann Estuary)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_BannEstuary_se01 (Bann Estuary)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020