CSEMP assessment of fluoranthene in sediment at Off Tees
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 12.71 | 17.21 | -3.35 | 6.71 | |||
linear | 2 | 11.22 | 21.88 | -1.61 | 3.22 | 3.489 | 1 | 0.0618 |
smooth (df = 2) | 3 | 13.21 | 38.21 | -1.61 | 3.21 | 0.006 | 1 | 0.9402 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2017 | 6.198 | 5.745 | -0.4528 | 0.2118 | -2.138 | 0.0856 |
last 20 years | 2005 | 2017 | 6.198 | 5.745 | -0.4528 | 0.2118 | -2.138 | 0.0856 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 312.6 | 39.0 | -2.0813 | 0.1494 | -13.931 | 1.0000 |
ERL | 312.6 | 600.0 | 0.6520 | 0.1494 | 4.364 | 0.0036 |
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 : TyneTees_TTInter_se02 (Off Tees)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : TyneTees_TTInter_se02 (Off Tees)
Determinand : Fluoranthene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020