CSEMP assessment of CB153 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 126.08 | 127.36 | -60.04 | 120.08 | | | |
| linear | 2 | 124.88 | 127.35 | -58.44 | 116.88 | 3.194 | 1 | 0.0739 |
| smooth (df = 2) | 3 | 126.46 | 130.63 | -58.23 | 116.46 | 0.423 | 1 | 0.5153 |
| smooth (df = 3) | 4 | 125.90 | 132.44 | -56.95 | 113.90 | 2.564 | 1 | 0.1093 |
| smooth (df = 4) | 5 | 123.26 | 133.06 | -54.63 | 109.26 | 4.634 | 1 | 0.0313 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | 0.3856 | 0.9116 | 0.5261 | 0.2793 | 1.884 | 0.0792 |
| last 20 years | 1999 | 2017 | 0.3856 | 0.9116 | 0.5261 | 0.2793 | 1.884 | 0.0792 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 2.49 | 0.19 | -2.5724 | 0.1524 | -16.881 | 1.0000 |
| EAC | 2.49 | 40.00 | 2.7772 | 0.1524 | 18.226 | <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 Clyde)")
Raw data with assessment
__sdmn_cb153_da.jpg "Raw data with assessment of CB153 in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_cb153_as.jpg "Assessment plot for CB153 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB153 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB153 in sediment at inner (Firth of Clyde)")
Related pages
