CSEMP assessment of cadmium in biota at Conwy Sands (Conwy Bay)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | -11.00 | -2.00 | 8.50 | -17.00 | |||
linear | 2 | -12.76 | 19.24 | 10.38 | -20.76 | 3.766 | 1 | 0.0523 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2012 | 2018 | 4.956 | 4.669 | -0.28632 | 0.12022 | -2.382 | 0.0975 |
last 20 years | 2012 | 2018 | 4.956 | 4.669 | -0.28632 | 0.12022 | -2.382 | 0.0975 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 106.6 | 156.5 | 0.3836 | 0.0827 | 4.640 | 0.0094 |
EC | 106.6 | 1000.0 | 2.2385 | 0.0827 | 27.077 | <0.0001 |
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
Media : Biota (Blue mussel soft body)
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : Cadmium
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : Cadmium
Units : μg kg-1 wet weight
Data extraction : 30 April 2020