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 | 104.77 | 107.34 | -49.39 | 98.77 | | | |
| linear | 2 | 91.21 | 96.54 | -41.60 | 83.21 | 15.565 | 1 | <0.0001 |
| smooth (df = 2) | 3 | 93.11 | 103.11 | -41.56 | 83.11 | 0.094 | 1 | 0.7594 |
| smooth (df = 3) | 4 | 95.05 | 113.05 | -41.53 | 83.05 | 0.062 | 1 | 0.8031 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2017 | -2.4583 | -0.4924 | 1.966 | 0.347 | 5.666 | 0.0005 |
| last 20 years | 2006 | 2017 | -2.4583 | -0.4924 | 1.966 | 0.347 | 5.666 | 0.0005 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.6112 | 0.1200 | -1.6279 | 0.1586 | -10.264 | 1.0000 |
| EAC | 0.6112 | 2.7000 | 1.4856 | 0.1586 | 9.367 | <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
