CSEMP assessment of CB118 in sediment at inner (Firth of Forth)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 110.23 | 111.73 | -52.12 | 104.23 | | | |
| linear | 2 | 111.61 | 114.52 | -51.80 | 103.61 | 0.621 | 1 | 0.4307 |
| smooth (df = 2) | 3 | 109.05 | 114.05 | -49.53 | 99.05 | 4.560 | 1 | 0.0327 |
| smooth (df = 3) | 4 | 110.78 | 118.78 | -49.39 | 98.78 | 0.268 | 1 | 0.6047 |
| smooth (df = 4) | 5 | 110.78 | 123.03 | -48.39 | 96.78 | 1.998 | 1 | 0.1575 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | -0.4367 | -0.6879 | -0.25120 | 0.30926 | -0.812 | 0.4313 |
| last 20 years | 1999 | 2016 | -0.4367 | -0.6879 | -0.25120 | 0.30926 | -0.812 | 0.4313 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.5026 | 0.1700 | -1.0840 | 0.1650 | -6.569 | 1.0000 |
| EAC | 0.5026 | 0.6000 | 0.1771 | 0.1650 | 1.073 | 0.1513 |
Raw data with supporting information
__sdmn_cb118_au.jpg "Raw data with supporting information for assessment of CB118 in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cb118_da.jpg "Raw data with assessment of CB118 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb118_as.jpg "Assessment plot for CB118 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB118 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB118 in sediment at inner (Firth of Forth)")
Related pages
