CSEMP assessment of CB118 in sediment at outer (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 112.21 | 113.49 | -53.10 | 106.21 | | | |
| linear | 2 | 110.35 | 112.81 | -51.18 | 102.35 | 3.856 | 1 | 0.0496 |
| smooth (df = 2) | 3 | 102.73 | 106.89 | -46.36 | 92.73 | 9.624 | 1 | 0.0019 |
| smooth (df = 3) | 4 | 104.72 | 111.27 | -46.36 | 92.72 | 0.006 | 1 | 0.9362 |
| smooth (df = 4) | 5 | 104.96 | 114.76 | -45.48 | 90.96 | 1.758 | 1 | 0.1849 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 0.1011 | -0.5519 | -0.6530 | 0.2625 | -2.488 | 0.0261 |
| last 20 years | 2000 | 2017 | 0.1011 | -0.5519 | -0.6530 | 0.2625 | -2.488 | 0.0261 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.5759 | 0.1700 | -1.2201 | 0.2197 | -5.553 | 1.0000 |
| EAC | 0.5759 | 0.6000 | 0.0410 | 0.2197 | 0.187 | 0.4272 |
Raw data with supporting information
__sdmn_cb118_au.jpg "Raw data with supporting information for assessment of CB118 in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_cb118_da.jpg "Raw data with assessment of CB118 in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_cb118_as.jpg "Assessment plot for CB118 in sediment at outer (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB118 in sediment at outer (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB118 in sediment at outer (Firth of Clyde)")
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