CSEMP assessment of mercury 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 | -10.77 | -1.77 | 8.39 | -16.77 | |||
linear | 2 | -8.78 | 23.22 | 8.39 | -16.78 | 0.013 | 1 | 0.9108 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2012 | 2018 | 3.234 | 3.210 | -0.02376 | 0.21164 | -0.112 | 0.9177 |
last 20 years | 2012 | 2018 | 3.234 | 3.210 | -0.02376 | 0.21164 | -0.112 | 0.9177 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 24.8 | 14.7 | -0.5242 | 0.1458 | -3.595 | 0.9815 |
EC | 24.8 | 500.0 | 3.0046 | 0.1458 | 20.603 | 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 : Mercury
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : Mercury
Units : μg kg-1 wet weight
Data extraction : 30 April 2020