CSEMP assessment of c1 dibenzothiophene 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 | 44.66 | 47.23 | -19.33 | 38.66 | |||
linear | 2 | 43.97 | 49.30 | -17.99 | 35.97 | 2.689 | 1 | 0.1011 |
smooth (df = 2) | 3 | 45.87 | 55.87 | -17.94 | 35.87 | 0.100 | 1 | 0.7522 |
smooth (df = 3) | 4 | 47.37 | 65.37 | -17.68 | 35.37 | 0.502 | 1 | 0.4786 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 0.0810 | 0.8996 | 0.8186 | 0.4665 | 1.755 | 0.1174 |
last 20 years | 2005 | 2018 | 0.0810 | 0.8996 | 0.8186 | 0.4665 | 1.755 | 0.1174 |
Status assessment
No assessment criteria
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (alkylated) data
PAH (alkylated) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(alkylated) in sediment
- Accessment criteria for pah_(alkylated) in sediment
Media : Sediment (unsieved)
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : C1 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se02 (Fladen Ground)
Determinand : C1 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020