CSEMP assessment of phenanthrene in sediment at middle (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 118.08 | 119.88 | -56.04 | 112.08 | | | |
| linear | 2 | 117.45 | 121.00 | -54.72 | 109.45 | 2.628 | 1 | 0.1050 |
| smooth (df = 2) | 3 | 117.54 | 123.79 | -53.77 | 107.54 | 1.903 | 1 | 0.1677 |
| smooth (df = 3) | 4 | 119.12 | 129.41 | -53.56 | 107.12 | 0.420 | 1 | 0.5168 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2018 | 4.123 | 4.638 | 0.5141 | 0.3133 | 1.641 | 0.1290 |
| last 20 years | 2006 | 2018 | 4.123 | 4.638 | 0.5141 | 0.3133 | 1.641 | 0.1290 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 103.3 | 32.0 | -1.1719 | 0.1731 | -6.770 | 1.0000 |
| ERL | 103.3 | 240.0 | 0.8430 | 0.1731 | 4.870 | 0.0002 |
Raw data with supporting information
__sdmn_pa_au.jpg "Raw data with supporting information for assessment of phenanthrene in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_pa_da.jpg "Raw data with assessment of phenanthrene in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_pa_as.jpg "Assessment plot for phenanthrene in sediment at middle (Firth of Clyde)")
PAH (parent) data
__sdmn_p(p)da.jpg "PAH (parent) data for assessment of phenanthrene in sediment at middle (Firth of Clyde)")
PAH (parent) assessment
__sdmn_p(p)as.jpg "PAH (parent) assessment of phenanthrene in sediment at middle (Firth of Clyde)")
Related pages
