CSEMP assessment of CB153 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 | 113.28 | 114.78 | -53.64 | 107.28 | | | |
| linear | 2 | 115.26 | 118.17 | -53.63 | 107.26 | 0.018 | 1 | 0.8932 |
| smooth (df = 2) | 3 | 114.66 | 119.66 | -52.33 | 104.66 | 2.595 | 1 | 0.1072 |
| smooth (df = 3) | 4 | 114.93 | 122.93 | -51.47 | 102.93 | 1.728 | 1 | 0.1886 |
| smooth (df = 4) | 5 | 111.01 | 123.26 | -48.51 | 97.01 | 5.920 | 1 | 0.0150 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2016 | -0.2782 | -0.3283 | -0.0501 | 0.3670 | -0.136 | 0.8936 |
| last 20 years | 1999 | 2016 | -0.2782 | -0.3283 | -0.0501 | 0.3670 | -0.136 | 0.8936 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.72 | 0.19 | -1.332 | 0.198 | -6.724 | 1.0000 |
| EAC | 0.72 | 40.00 | 4.017 | 0.198 | 20.272 | <0.0001 |
Raw data with supporting information
__sdmn_cb153_au.jpg "Raw data with supporting information for assessment of CB153 in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cb153_da.jpg "Raw data with assessment of CB153 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb153_as.jpg "Assessment plot for CB153 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB153 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB153 in sediment at inner (Firth of Forth)")
Related pages
