CSEMP assessment of lead in biota at DougoldCarrickM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 1.36 | 3.76 | 1.32 | -2.64 | |||
linear | 2 | 2.04 | 8.04 | 1.98 | -3.96 | 1.319 | 1 | 0.2508 |
smooth (df = 2) | 3 | 4.03 | 17.36 | 1.98 | -3.97 | 0.012 | 1 | 0.9137 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 6.513 | 6.268 | -0.24435 | 0.20407 | -1.197 | 0.2763 |
last 20 years | 2011 | 2018 | 6.513 | 6.268 | -0.24435 | 0.20407 | -1.197 | 0.2763 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 527.5 | 211.9 | -0.9121 | 0.1220 | -7.479 | 0.9999 |
EC | 527.5 | 1500.0 | 1.0450 | 0.1220 | 8.568 | <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_sh08 (DougoldCarrickM)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_BelfastLoughInnr_sh08 (DougoldCarrickM)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 30 April 2020