CSEMP assessment of phenanthrene in sediment at Hunterston (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 154.18 | 155.38 | -74.09 | 148.18 | | | |
| linear | 2 | 155.06 | 157.34 | -73.53 | 147.06 | 1.121 | 1 | 0.2897 |
| smooth (df = 2) | 3 | 156.21 | 160.06 | -73.11 | 146.21 | 0.845 | 1 | 0.3581 |
| smooth (df = 3) | 4 | 156.10 | 162.10 | -72.05 | 144.10 | 2.114 | 1 | 0.1459 |
| smooth (df = 4) | 5 | 155.71 | 164.62 | -70.85 | 141.71 | 2.391 | 1 | 0.1220 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 4.854 | 5.166 | 0.31160 | 0.29257 | 1.065 | 0.3027 |
| last 20 years | 2000 | 2018 | 4.854 | 5.166 | 0.31160 | 0.29257 | 1.065 | 0.3027 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 175.16 | 32.00 | -1.6999 | 0.1545 | -11.002 | 1.0000 |
| ERL | 175.16 | 240.00 | 0.3150 | 0.1545 | 2.038 | 0.0292 |
Raw data with supporting information
_sdmn_pa_au.jpg "Raw data with supporting information for assessment of phenanthrene in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_pa_da.jpg "Raw data with assessment of phenanthrene in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_pa_as.jpg "Assessment plot for phenanthrene in sediment at Hunterston (Clyde)")
PAH (parent) data
_sdmn_p(p)da.jpg "PAH (parent) data for assessment of phenanthrene in sediment at Hunterston (Clyde)")
PAH (parent) assessment
_sdmn_p(p)as.jpg "PAH (parent) assessment of phenanthrene in sediment at Hunterston (Clyde)")
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