CSEMP assessment of indeno[123-cd]pyrene 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 | 73.29 | 76.29 | -33.64 | 67.29 | |||
linear | 2 | 75.28 | 81.68 | -33.64 | 67.28 | 0.001 | 1 | 0.9715 |
smooth (df = 2) | 3 | 77.28 | 89.78 | -33.64 | 67.28 | 0.002 | 1 | 0.9662 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2006 | 2016 | 3.707 | 3.699 | -0.00875 | 0.24562 | -0.036 | 0.9726 |
last 20 years | 2006 | 2016 | 3.707 | 3.699 | -0.00875 | 0.24562 | -0.036 | 0.9726 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 40.39 | 103.00 | 0.9361 | 0.1614 | 5.801 | 0.0003 |
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 : MinchMalin_TheMinchNorth_se01 (North Minch)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_TheMinchNorth_se01 (North Minch)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020