CSEMP assessment of CB118 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 | 61.26 | 63.26 | -27.63 | 55.26 | | | |
| linear | 2 | 52.90 | 56.90 | -22.45 | 44.90 | 10.369 | 1 | 0.0013 |
| smooth (df = 2) | 3 | 51.88 | 59.02 | -20.94 | 41.88 | 3.017 | 1 | 0.0824 |
| smooth (df = 3) | 4 | 53.13 | 65.13 | -20.57 | 41.13 | 0.745 | 1 | 0.3880 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | -1.0275 | -0.2947 | 0.7329 | 0.1907 | 3.843 | 0.0032 |
| last 20 years | 2006 | 2017 | -1.0275 | -0.2947 | 0.7329 | 0.1907 | 3.843 | 0.0032 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.7448 | 0.1700 | -1.4773 | 0.1055 | -13.998 | 1.0000 |
| EAC | 0.7448 | 0.6000 | -0.2161 | 0.1055 | -2.048 | 0.9661 |
Raw data with supporting information
__sdmn_cb118_au.jpg "Raw data with supporting information for assessment of CB118 in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_cb118_da.jpg "Raw data with assessment of CB118 in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_cb118_as.jpg "Assessment plot for CB118 in sediment at middle (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB118 in sediment at middle (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB118 in sediment at middle (Firth of Clyde)")
Related pages
