CSEMP assessment of CB153 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 | 126.27 | 127.65 | -60.13 | 120.27 | | | |
| linear | 2 | 127.49 | 130.16 | -59.74 | 119.49 | 0.780 | 1 | 0.3771 |
| smooth (df = 2) | 3 | 129.48 | 134.03 | -59.74 | 119.48 | 0.008 | 1 | 0.9296 |
| smooth (df = 3) | 4 | 125.77 | 132.97 | -56.89 | 113.77 | 5.712 | 1 | 0.0169 |
| smooth (df = 4) | 5 | 127.46 | 138.35 | -56.73 | 113.46 | 0.311 | 1 | 0.5771 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | -0.1766 | -0.5496 | -0.3729 | 0.4037 | -0.924 | 0.3712 |
| last 20 years | 1999 | 2018 | -0.1766 | -0.5496 | -0.3729 | 0.4037 | -0.924 | 0.3712 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.58 | 0.19 | -1.111 | 0.225 | -4.948 | 0.9999 |
| EAC | 0.58 | 40.00 | 4.238 | 0.225 | 18.874 | <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 Forth)")
Raw data with assessment
__sdmn_cb153_da.jpg "Raw data with assessment of CB153 in sediment at inner (Firth of Forth)")
Assessment plot
__sdmn_cb153_as.jpg "Assessment plot for CB153 in sediment at inner (Firth of Forth)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB153 in sediment at inner (Firth of Forth)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB153 in sediment at inner (Firth of Forth)")
Related pages
