CSEMP assessment of CB180 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 | 96.12 | 98.37 | -45.06 | 90.12 | | | |
| linear | 2 | 94.87 | 99.44 | -43.43 | 86.87 | 3.254 | 1 | 0.0713 |
| smooth (df = 2) | 3 | 96.06 | 104.39 | -43.03 | 86.06 | 0.810 | 1 | 0.3682 |
| smooth (df = 3) | 4 | 96.06 | 110.46 | -42.03 | 84.06 | 2.003 | 1 | 0.1570 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2007 | 2017 | -0.9613 | -0.4443 | 0.5170 | 0.2655 | 1.948 | 0.0833 |
| last 20 years | 2007 | 2017 | -0.9613 | -0.4443 | 0.5170 | 0.2655 | 1.948 | 0.0833 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.641 | 0.100 | -1.8583 | 0.1556 | -11.943 | 1.0000 |
| EAC | 0.641 | 12.000 | 2.9292 | 0.1556 | 18.825 | <0.0001 |
Raw data with supporting information
__sdmn_cb180_au.jpg "Raw data with supporting information for assessment of CB180 in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_cb180_da.jpg "Raw data with assessment of CB180 in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_cb180_as.jpg "Assessment plot for CB180 in sediment at middle (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB180 in sediment at middle (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB180 in sediment at middle (Firth of Clyde)")
Related pages
