CSEMP assessment of CB118 in sediment at Hunterston (Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 154.51 | 155.71 | -74.25 | 148.51 | | | |
| linear | 2 | 156.32 | 158.60 | -74.16 | 148.32 | 0.191 | 1 | 0.6618 |
| smooth (df = 2) | 3 | 157.60 | 161.45 | -73.80 | 147.60 | 0.714 | 1 | 0.3981 |
| smooth (df = 3) | 4 | 157.30 | 163.30 | -72.65 | 145.30 | 2.305 | 1 | 0.1290 |
| smooth (df = 4) | 5 | 157.84 | 166.75 | -71.92 | 143.84 | 1.453 | 1 | 0.2280 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | -0.3336 | -0.5110 | -0.1774 | 0.4053 | -0.438 | 0.6675 |
| last 20 years | 2000 | 2018 | -0.3336 | -0.5110 | -0.1774 | 0.4053 | -0.438 | 0.6675 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.5999 | 0.1700 | -1.2610 | 0.2271 | -5.552 | 1.0000 |
| EAC | 0.5999 | 0.6000 | 0.0002 | 0.2271 | 0.001 | 0.4997 |
Raw data with supporting information
_sdmn_cb118_au.jpg "Raw data with supporting information for assessment of CB118 in sediment at Hunterston (Clyde)")
Raw data with assessment
_sdmn_cb118_da.jpg "Raw data with assessment of CB118 in sediment at Hunterston (Clyde)")
Assessment plot
_sdmn_cb118_as.jpg "Assessment plot for CB118 in sediment at Hunterston (Clyde)")
Chlorobiphenyls data
_sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB118 in sediment at Hunterston (Clyde)")
Chlorobiphenyls assessment
_sdmn_chlras.jpg "Chlorobiphenyls assessment of CB118 in sediment at Hunterston (Clyde)")
Related pages
