CSEMP assessment of c3 dibenzothiophenes in sediment at Sea of Hebrides
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 174.06 | 177.06 | -84.03 | 168.06 | |||
linear | 2 | 173.44 | 179.84 | -82.72 | 165.44 | 2.618 | 1 | 0.1056 |
smooth (df = 2) | 3 | 175.41 | 187.91 | -82.71 | 165.41 | 0.027 | 1 | 0.8700 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2006 | 2016 | 0.7459 | 1.4163 | 0.6704 | 0.3804 | 1.762 | 0.1214 |
last 20 years | 2006 | 2016 | 0.7459 | 1.4163 | 0.6704 | 0.3804 | 1.762 | 0.1214 |
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 : MinchMalin_SeaOfHebrides_se01 (Sea of Hebrides)
Determinand : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_SeaOfHebrides_se01 (Sea of Hebrides)
Determinand : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020