CSEMP assessment of benzo[g,h,i]perylene 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 | 56.64 | 59.21 | -25.32 | 50.64 | |||
linear | 2 | 57.11 | 62.44 | -24.55 | 49.11 | 1.527 | 1 | 0.2165 |
smooth (df = 2) | 3 | 58.92 | 68.92 | -24.46 | 48.92 | 0.191 | 1 | 0.6624 |
smooth (df = 3) | 4 | 60.18 | 78.18 | -24.09 | 48.18 | 0.738 | 1 | 0.3903 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 3.347 | 4.075 | 0.7288 | 0.5680 | 1.283 | 0.2354 |
last 20 years | 2005 | 2018 | 3.347 | 4.075 | 0.7288 | 0.5680 | 1.283 | 0.2354 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 58.87 | 80.00 | 0.3066 | 0.3931 | 0.780 | 0.2289 |
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 : Benzo[g,h,i]perylene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : Benzo[g,h,i]perylene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020