CSEMP assessment of CB153 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 129.85 | 131.05 | -61.92 | 123.85 | | | |
| linear | 2 | 128.54 | 130.83 | -60.27 | 120.54 | 3.305 | 1 | 0.0691 |
| smooth (df = 2) | 3 | 129.88 | 133.73 | -59.94 | 119.88 | 0.661 | 1 | 0.4164 |
| smooth (df = 3) | 4 | 130.03 | 136.03 | -59.02 | 118.03 | 1.850 | 1 | 0.1738 |
| smooth (df = 4) | 5 | 127.33 | 136.24 | -56.67 | 113.33 | 4.698 | 1 | 0.0302 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | 0.4010 | 0.9133 | 0.5122 | 0.2680 | 1.912 | 0.0740 |
| last 20 years | 1999 | 2018 | 0.4010 | 0.9133 | 0.5122 | 0.2680 | 1.912 | 0.0740 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 2.49 | 0.19 | -2.5740 | 0.1465 | -17.567 | 1.0000 |
| EAC | 2.49 | 40.00 | 2.7756 | 0.1465 | 18.943 | <0.0001 |
Raw data with supporting information
__sdmn_cb153_au.jpg "Raw data with supporting information for assessment of CB153 in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_cb153_da.jpg "Raw data with assessment of CB153 in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_cb153_as.jpg "Assessment plot for CB153 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB153 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB153 in sediment at inner (Firth of Clyde)")
Related pages
