CSEMP assessment of CB153 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 | 113.42 | 114.71 | -53.71 | 107.42 | | | |
| linear | 2 | 114.74 | 117.20 | -53.37 | 106.74 | 0.689 | 1 | 0.4067 |
| smooth (df = 2) | 3 | 108.98 | 113.15 | -49.49 | 98.98 | 7.756 | 1 | 0.0054 |
| smooth (df = 3) | 4 | 110.86 | 117.41 | -49.43 | 98.86 | 0.114 | 1 | 0.7356 |
| smooth (df = 4) | 5 | 111.00 | 120.80 | -48.50 | 97.00 | 1.860 | 1 | 0.1726 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 0.01078 | -0.23132 | -0.24209 | 0.28148 | -0.860 | 0.4042 |
| last 20 years | 2000 | 2017 | 0.01078 | -0.23132 | -0.24209 | 0.28148 | -0.860 | 0.4042 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.79 | 0.19 | -1.429 | 0.234 | -6.116 | 1.0000 |
| EAC | 0.79 | 40.00 | 3.920 | 0.234 | 16.773 | <0.0001 |
Raw data with supporting information
__sdmn_cb153_au.jpg "Raw data with supporting information for assessment of CB153 in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_cb153_da.jpg "Raw data with assessment of CB153 in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_cb153_as.jpg "Assessment plot for CB153 in sediment at outer (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB153 in sediment at outer (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB153 in sediment at outer (Firth of Clyde)")
Related pages
