CSEMP assessment of c2 dibenzothiophene in sediment at North Minch
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 56.17 | 57.80 | -25.08 | 50.17 | |||
linear | 2 | 47.05 | 50.25 | -19.52 | 39.05 | 11.117 | 1 | 0.0009 |
smooth (df = 2) | 3 | 40.58 | 46.14 | -15.29 | 30.58 | 8.468 | 1 | 0.0036 |
smooth (df = 3) | 4 | 40.96 | 49.96 | -14.48 | 28.96 | 1.622 | 1 | 0.2028 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2016 | 2.3808 | 1.7927 | -0.5881 | 0.3066 | -1.919 | 0.0814 |
last 20 years | 1999 | 2016 | 2.3808 | 1.7927 | -0.5881 | 0.3066 | -1.919 | 0.0814 |
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_TheMinchNorth_se02 (North Minch)
Determinand : C2 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_TheMinchNorth_se02 (North Minch)
Determinand : C2 Dibenzothiophene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020