CSEMP assessment of CB118 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 | 125.34 | 126.72 | -59.67 | 119.34 | | | |
| linear | 2 | 124.82 | 127.49 | -58.41 | 116.82 | 2.514 | 1 | 0.1128 |
| smooth (df = 2) | 3 | 126.77 | 131.32 | -58.39 | 116.77 | 0.049 | 1 | 0.8255 |
| smooth (df = 3) | 4 | 124.02 | 131.22 | -56.01 | 112.02 | 4.750 | 1 | 0.0293 |
| smooth (df = 4) | 5 | 125.58 | 136.47 | -55.79 | 111.58 | 0.440 | 1 | 0.5069 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | -0.3288 | -0.9343 | -0.6055 | 0.3574 | -1.694 | 0.1123 |
| last 20 years | 1999 | 2018 | -0.3288 | -0.9343 | -0.6055 | 0.3574 | -1.694 | 0.1123 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.3929 | 0.1700 | -0.8376 | 0.1969 | -4.253 | 0.9996 |
| EAC | 0.3929 | 0.6000 | 0.4235 | 0.1969 | 2.150 | 0.0247 |
Raw data with supporting information
__sdmn_cb118_au.jpg "Raw data with supporting information for assessment of CB118 in sediment at inner (Firth of Forth)")
Raw data with assessment
__sdmn_cb118_da.jpg "Raw data with assessment of CB118 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb118_as.jpg "Assessment plot for CB118 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB118 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB118 in sediment at inner (Firth of Forth)")
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