CSEMP assessment of 1-hydroxy pyrene equivalent in biota at Camarthen Bay
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 150.07 | 153.07 | -72.04 | 144.07 | | | |
| linear | 2 | 148.01 | 154.41 | -70.00 | 140.01 | 4.069 | 1 | 0.0437 |
| smooth (df = 2) | 3 | 149.27 | 161.77 | -69.64 | 139.27 | 0.735 | 1 | 0.3912 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2004 | 2016 | -2.0277 | -1.5457 | 0.4820 | 0.2137 | 2.256 | 0.0587 |
| last 20 years | 2004 | 2016 | -2.0277 | -1.5457 | 0.4820 | 0.2137 | 2.256 | 0.0587 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.213 | 0.150 | -0.351 | 0.131 | -2.674 | 0.9841 |
| EAC | 0.213 | 22.000 | 4.637 | 0.131 | 35.278 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Biological effects data
Biological effects assessment
Related pages
