CSEMP assessment of CB52 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 | 107.30 | 109.30 | -50.65 | 101.30 | | | |
| linear | 2 | 107.61 | 111.61 | -49.81 | 99.61 | 1.690 | 1 | 0.1936 |
| smooth (df = 2) | 3 | 107.88 | 115.02 | -48.94 | 97.88 | 1.734 | 1 | 0.1879 |
| smooth (df = 3) | 4 | 109.86 | 121.86 | -48.93 | 97.86 | 0.022 | 1 | 0.8831 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | -0.6018 | -1.4411 | -0.8394 | 0.6176 | -1.359 | 0.2039 |
| last 20 years | 1999 | 2018 | -0.6018 | -1.4411 | -0.8394 | 0.6176 | -1.359 | 0.2039 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.2367 | 0.1200 | -0.6791 | 0.3321 | -2.045 | 0.9660 |
| EAC | 0.2367 | 2.7000 | 2.4344 | 0.3321 | 7.331 | <0.0001 |
Raw data with supporting information
__sdmn_cb52_au.jpg "Raw data with supporting information for assessment of CB52 in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cb52_da.jpg "Raw data with assessment of CB52 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb52_as.jpg "Assessment plot for CB52 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB52 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB52 in sediment at inner (Firth of Forth)")
Related pages
