CSEMP assessment of arsenic in sediment at Off Tees
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 2.39 | 11.39 | 1.80 | -3.61 | | | |
| linear | 2 | 4.34 | 36.34 | 1.83 | -3.66 | 0.051 | 1 | 0.8205 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2010 | 2017 | 3.118 | 3.163 | 0.04456 | 0.19628 | 0.227 | 0.8350 |
| last 20 years | 2010 | 2017 | 3.118 | 3.163 | 0.04456 | 0.19628 | 0.227 | 0.8350 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 23.63 | 25.00 | 0.05636 | 0.10073 | 0.559 | 0.3074 |
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 sediment
- Accessment criteria for metals in sediment
