CSEMP assessment of phenanthrene in sediment at inner (Firth of Forth)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 181.37 | 182.87 | -87.69 | 175.37 | | | |
| linear | 2 | 182.44 | 185.34 | -87.22 | 174.44 | 0.937 | 1 | 0.3331 |
| smooth (df = 2) | 3 | 184.43 | 189.43 | -87.21 | 174.43 | 0.008 | 1 | 0.9284 |
| smooth (df = 3) | 4 | 186.04 | 194.04 | -87.02 | 174.04 | 0.389 | 1 | 0.5326 |
| smooth (df = 4) | 5 | 187.85 | 200.10 | -86.93 | 173.85 | 0.187 | 1 | 0.6657 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | 4.990 | 4.591 | -0.3991 | 0.4073 | -0.980 | 0.3450 |
| last 20 years | 1999 | 2016 | 4.990 | 4.591 | -0.3991 | 0.4073 | -0.980 | 0.3450 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 98.59 | 32.00 | -1.1252 | 0.2153 | -5.226 | 0.9999 |
| ERL | 98.59 | 240.00 | 0.8897 | 0.2153 | 4.132 | 0.0006 |
Raw data with supporting information
__sdmn_pa_au.jpg "Raw data with supporting information for assessment of phenanthrene in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_pa_da.jpg "Raw data with assessment of phenanthrene in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_pa_as.jpg "Assessment plot for phenanthrene in sediment at inner (Firth of Forth)")
PAH (parent) data
__sdmn_p(p)da.jpg "PAH (parent) data for assessment of phenanthrene in sediment at inner (Firth of Forth)")
PAH (parent) assessment
__sdmn_p(p)as.jpg "PAH (parent) assessment of phenanthrene in sediment at inner (Firth of Forth)")
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