CSEMP assessment of 1-hydroxy pyrene equivalent in biota at Amble
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 107.36 | 110.36 | -50.68 | 101.36 | | | |
| linear | 2 | 109.35 | 115.75 | -50.67 | 101.35 | 0.008 | 1 | 0.9293 |
| smooth (df = 2) | 3 | 111.26 | 123.76 | -50.63 | 101.26 | 0.086 | 1 | 0.7693 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2015 | -2.1587 | -2.1153 | 0.0435 | 0.4903 | 0.089 | 0.9318 |
| last 20 years | 2000 | 2015 | -2.1587 | -2.1153 | 0.0435 | 0.4903 | 0.089 | 0.9318 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.121 | 0.150 | 0.218 | 0.284 | 0.768 | 0.2339 |
| EAC | 0.121 | 22.000 | 5.206 | 0.284 | 18.320 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Biological effects data
Biological effects assessment
Related pages
