CSEMP assessment of anthracene 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 | 79.31 | 82.31 | -36.65 | 73.31 | |||
linear | 2 | 81.14 | 87.54 | -36.57 | 73.14 | 0.163 | 1 | 0.6861 |
smooth (df = 2) | 3 | 82.13 | 94.63 | -36.06 | 72.13 | 1.016 | 1 | 0.3136 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2006 | 2016 | 0.4286 | 0.5375 | 0.10893 | 0.26953 | 0.404 | 0.6982 |
last 20 years | 2006 | 2016 | 0.4286 | 0.5375 | 0.10893 | 0.26953 | 0.404 | 0.6982 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 1.71 | 5.00 | 1.072 | 0.177 | 6.067 | 0.0003 |
ERL | 1.71 | 85.00 | 3.905 | 0.177 | 22.104 | <0.0001 |
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 : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_TheMinchNorth_se01 (North Minch)
Determinand : Anthracene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020