CSEMP assessment of CB28 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 | 111.91 | 113.71 | -52.95 | 105.91 | | | |
| linear | 2 | 113.89 | 117.45 | -52.94 | 105.89 | 0.017 | 1 | 0.8968 |
| smooth (df = 2) | 3 | 114.42 | 120.67 | -52.21 | 104.42 | 1.470 | 1 | 0.2253 |
| smooth (df = 3) | 4 | 114.63 | 124.91 | -51.31 | 102.63 | 1.792 | 1 | 0.1807 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | -0.3037 | -0.3618 | -0.0581 | 0.4436 | -0.131 | 0.8981 |
| last 20 years | 1999 | 2016 | -0.3037 | -0.3618 | -0.0581 | 0.4436 | -0.131 | 0.8981 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.6964 | 0.2200 | -1.1523 | 0.2419 | -4.763 | 0.9997 |
| EAC | 0.6964 | 1.7000 | 0.8924 | 0.2419 | 3.689 | 0.0018 |
Raw data with supporting information
__sdmn_cb28_au.jpg "Raw data with supporting information for assessment of CB28 in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cb28_da.jpg "Raw data with assessment of CB28 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb28_as.jpg "Assessment plot for CB28 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB28 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB28 in sediment at inner (Firth of Forth)")
Related pages
