CSEMP assessment of c3 dibenzothiophenes 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 | 86.73 | 88.37 | -40.37 | 80.73 | |||
linear | 2 | 80.03 | 83.23 | -36.02 | 72.03 | 8.703 | 1 | 0.0032 |
smooth (df = 2) | 3 | 75.08 | 80.63 | -32.54 | 65.08 | 6.954 | 1 | 0.0084 |
smooth (df = 3) | 4 | 77.06 | 86.06 | -32.53 | 65.06 | 0.014 | 1 | 0.9050 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2016 | 2.1200 | 1.3832 | -0.7368 | 0.4242 | -1.737 | 0.1103 |
last 20 years | 1999 | 2016 | 2.1200 | 1.3832 | -0.7368 | 0.4242 | -1.737 | 0.1103 |
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 : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_TheMinchNorth_se02 (North Minch)
Determinand : C3 Dibenzothiophenes
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020