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 | 118.82 | 120.45 | -56.41 | 112.82 | | | |
| linear | 2 | 120.27 | 123.47 | -56.13 | 112.27 | 0.550 | 1 | 0.4583 |
| smooth (df = 2) | 3 | 122.27 | 127.82 | -56.13 | 112.27 | 0.002 | 1 | 0.9640 |
| smooth (df = 3) | 4 | 119.90 | 128.90 | -53.95 | 107.90 | 4.367 | 1 | 0.0366 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | -0.2098 | -0.5689 | -0.3591 | 0.4673 | -0.769 | 0.4570 |
| last 20 years | 1999 | 2018 | -0.2098 | -0.5689 | -0.3591 | 0.4673 | -0.769 | 0.4570 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.5662 | 0.2200 | -0.9453 | 0.2600 | -3.635 | 0.9983 |
| EAC | 0.5662 | 1.7000 | 1.0995 | 0.2600 | 4.228 | 0.0006 |
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)")
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