CSEMP assessment of lead in biota at MiddleBankM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 0.73 | 3.13 | 1.63 | -3.27 | |||
linear | 2 | -0.97 | 5.03 | 3.48 | -6.97 | 3.703 | 1 | 0.0543 |
smooth (df = 2) | 3 | -1.08 | 12.25 | 4.54 | -9.08 | 2.110 | 1 | 0.1463 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 6.684 | 6.317 | -0.3669 | 0.1691 | -2.170 | 0.0731 |
last 20 years | 2011 | 2018 | 6.684 | 6.317 | -0.3669 | 0.1691 | -2.170 | 0.0731 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 553.9 | 211.9 | -0.9608 | 0.1011 | -9.508 | 1.0000 |
EC | 553.9 | 1500.0 | 0.9963 | 0.1011 | 9.859 | <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_BelfastLoughInnr_sh10 (MiddleBankM)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_BelfastLoughInnr_sh10 (MiddleBankM)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 30 April 2020