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 | 192.60 | 195.18 | -93.30 | 186.60 | | | |
| linear | 2 | 192.81 | 198.14 | -92.40 | 184.81 | 1.796 | 1 | 0.1801 |
| smooth (df = 2) | 3 | 192.54 | 202.54 | -91.27 | 182.54 | 2.266 | 1 | 0.1322 |
| smooth (df = 3) | 4 | 193.99 | 211.99 | -91.00 | 181.99 | 0.547 | 1 | 0.4594 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2004 | 2018 | -1.9664 | -1.6490 | 0.3174 | 0.2277 | 1.394 | 0.2009 |
| last 20 years | 2004 | 2018 | -1.9664 | -1.6490 | 0.3174 | 0.2277 | 1.394 | 0.2009 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.192 | 0.150 | -0.248 | 0.141 | -1.754 | 0.9412 |
| EAC | 0.192 | 22.000 | 4.740 | 0.141 | 33.509 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Biological effects data
Biological effects assessment
Related pages
