CSEMP assessment of CB180 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 | 117.71 | 119.51 | -55.85 | 111.71 | | | |
| linear | 2 | 119.34 | 122.90 | -55.67 | 111.34 | 0.366 | 1 | 0.5450 |
| smooth (df = 2) | 3 | 117.77 | 124.02 | -53.89 | 107.77 | 3.571 | 1 | 0.0588 |
| smooth (df = 3) | 4 | 112.18 | 122.47 | -50.09 | 100.18 | 7.590 | 1 | 0.0059 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | -0.7550 | -0.5105 | 0.2446 | 0.4027 | 0.607 | 0.5559 |
| last 20 years | 1999 | 2016 | -0.7550 | -0.5105 | 0.2446 | 0.4027 | 0.607 | 0.5559 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.6 | 0.1 | -1.7921 | 0.2096 | -8.549 | 1.0000 |
| EAC | 0.6 | 12.0 | 2.9954 | 0.2096 | 14.288 | <0.0001 |
Raw data with supporting information
__sdmn_cb180_au.jpg "Raw data with supporting information for assessment of CB180 in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cb180_da.jpg "Raw data with assessment of CB180 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb180_as.jpg "Assessment plot for CB180 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB180 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB180 in sediment at inner (Firth of Forth)")
Related pages
