CSEMP assessment of CB52 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 | 135.17 | 137.17 | -64.58 | 129.17 | | | |
| linear | 2 | 130.60 | 134.60 | -61.30 | 122.60 | 6.568 | 1 | 0.0104 |
| smooth (df = 2) | 3 | 125.03 | 132.17 | -57.51 | 115.03 | 7.574 | 1 | 0.0059 |
| smooth (df = 3) | 4 | 127.02 | 139.02 | -57.51 | 115.02 | 0.004 | 1 | 0.9483 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 0.7081 | -0.9223 | -1.6304 | 0.4963 | -3.285 | 0.0095 |
| last 20 years | 2000 | 2017 | 0.7081 | -0.9223 | -1.6304 | 0.4963 | -3.285 | 0.0095 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.3976 | 0.1200 | -1.1979 | 0.4224 | -2.836 | 0.9902 |
| EAC | 0.3976 | 2.7000 | 1.9156 | 0.4224 | 4.534 | 0.0007 |
Raw data with supporting information
__sdmn_cb52_au.jpg "Raw data with supporting information for assessment of CB52 in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_cb52_da.jpg "Raw data with assessment of CB52 in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_cb52_as.jpg "Assessment plot for CB52 in sediment at outer (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB52 in sediment at outer (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB52 in sediment at outer (Firth of Clyde)")
Related pages
