CSEMP assessment of cadmium in biota at Tees Bay
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 101.40 | 103.40 | -47.70 | 95.40 | | | |
| linear | 2 | 98.73 | 102.73 | -45.36 | 90.73 | 4.674 | 1 | 0.0306 |
| smooth (df = 2) | 3 | 100.62 | 107.76 | -45.31 | 90.62 | 0.112 | 1 | 0.7374 |
| smooth (df = 3) | 4 | 102.34 | 114.34 | -45.17 | 90.34 | 0.272 | 1 | 0.6019 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2001 | 2017 | 4.740 | 5.759 | 1.0194 | 0.4266 | 2.390 | 0.0380 |
| last 20 years | 2001 | 2017 | 4.740 | 5.759 | 1.0194 | 0.4266 | 2.390 | 0.0380 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 317.1 | 26.0 | -2.5010 | 0.2707 | -9.240 | 1.0000 |
| EC | 317.1 | 1000.0 | 1.1486 | 0.2707 | 4.243 | 0.0009 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Metals data
Metals assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in biota
- Accessment criteria for metals in biota
