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 | 62.86 | 64.66 | -28.43 | 56.86 | | | |
| linear | 2 | 57.12 | 60.68 | -24.56 | 49.12 | 7.741 | 1 | 0.0054 |
| smooth (df = 2) | 3 | 52.87 | 59.12 | -21.44 | 42.87 | 6.247 | 1 | 0.0124 |
| smooth (df = 3) | 4 | 53.48 | 63.76 | -20.74 | 41.48 | 1.395 | 1 | 0.2376 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2018 | -1.2386 | -0.5777 | 0.6609 | 0.1681 | 3.931 | 0.0028 |
| last 20 years | 2006 | 2018 | -1.2386 | -0.5777 | 0.6609 | 0.1681 | 3.931 | 0.0028 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.5612 | 0.1700 | -1.1942 | 0.1262 | -9.460 | 1.0000 |
| EAC | 0.5612 | 0.6000 | 0.0669 | 0.1262 | 0.530 | 0.3038 |
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
