CSEMP assessment of CB52 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 | 118.29 | 120.54 | -56.15 | 112.29 | | | |
| linear | 2 | 100.51 | 105.08 | -46.25 | 92.51 | 19.785 | 1 | <0.0001 |
| smooth (df = 2) | 3 | 102.28 | 110.62 | -46.14 | 92.28 | 0.224 | 1 | 0.6359 |
| smooth (df = 3) | 4 | 104.18 | 118.58 | -46.09 | 92.18 | 0.099 | 1 | 0.7527 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2018 | -2.5058 | -0.2856 | 2.2201 | 0.3241 | 6.849 | <0.0001 |
| last 20 years | 2006 | 2018 | -2.5058 | -0.2856 | 2.2201 | 0.3241 | 6.849 | <0.0001 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.7515 | 0.1200 | -1.8346 | 0.1504 | -12.195 | 1.0000 |
| EAC | 0.7515 | 2.7000 | 1.2789 | 0.1504 | 8.501 | <0.0001 |
Raw data with supporting information
__sdmn_cb52_au.jpg "Raw data with supporting information for assessment of CB52 in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_cb52_da.jpg "Raw data with assessment of CB52 in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_cb52_as.jpg "Assessment plot for CB52 in sediment at middle (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB52 in sediment at middle (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB52 in sediment at middle (Firth of Clyde)")
Related pages
