CSEMP assessment of CB28 in biota at New Brighton (Mersey)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 3.75 | 12.75 | 1.13 | -2.25 | | | |
| linear | 2 | 5.40 | 37.40 | 1.30 | -2.60 | 0.347 | 1 | 0.5560 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2017 | -1.0240 | -0.8891 | 0.13488 | 0.22851 | 0.590 | 0.5965 |
| last 20 years | 2002 | 2017 | -1.0240 | -0.8891 | 0.13488 | 0.22851 | 0.590 | 0.5965 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.4110 | 0.1223 | -1.2126 | 0.1186 | -10.221 | 0.9990 |
| EAC | 0.4110 | 0.8710 | 0.7510 | 0.1186 | 6.330 | 0.0040 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
