CSEMP assessment of lead in biota at NarrowWaterM
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | -2.48 | -0.08 | 3.24 | -6.48 | |||
linear | 2 | -2.13 | 3.87 | 4.07 | -8.13 | 1.653 | 1 | 0.1986 |
smooth (df = 2) | 3 | -1.21 | 12.13 | 4.60 | -9.21 | 1.077 | 1 | 0.2994 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2011 | 2018 | 6.567 | 6.354 | -0.21305 | 0.15723 | -1.355 | 0.2242 |
last 20 years | 2011 | 2018 | 6.567 | 6.354 | -0.21305 | 0.15723 | -1.355 | 0.2242 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 574.8 | 211.9 | -0.9979 | 0.0940 | -10.619 | 1.0000 |
EC | 574.8 | 1500.0 | 0.9592 | 0.0940 | 10.208 | <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_NewryEstuary_sh01 (NarrowWaterM)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_NewryEstuary_sh01 (NarrowWaterM)
Determinand : Lead
Units : μg kg-1 wet weight
Data extraction : 30 April 2020