CSEMP assessment of CB153 in biota at Off Boston (Wash)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 12.96 | 17.46 | -3.48 | 6.96 | | | |
| linear | 2 | 6.44 | 17.11 | 0.78 | -1.56 | 8.519 | 1 | 0.0035 |
| smooth (df = 2) | 3 | 6.57 | 31.57 | 1.71 | -3.43 | 1.872 | 1 | 0.1712 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2017 | -0.2247 | -1.1751 | -0.9504 | 0.2497 | -3.806 | 0.0125 |
| last 20 years | 1999 | 2017 | -0.2247 | -1.1751 | -0.9504 | 0.2497 | -3.806 | 0.0125 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.309 | 0.098 | -1.150 | 0.160 | -7.203 | 0.9996 |
| EAC | 0.309 | 20.605 | 4.201 | 0.160 | 26.318 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
