CSEMP assessment of DDE (p,p') 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 | 39.11 | 48.11 | -16.56 | 33.11 | |||
linear | 2 | 37.23 | 69.23 | -14.61 | 29.23 | 3.883 | 1 | 0.0488 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2012 | 2018 | -1.4435 | -0.0420 | 1.4015 | 0.5813 | 2.411 | 0.0949 |
last 20 years | 2012 | 2018 | -1.4435 | -0.0420 | 1.4015 | 0.5813 | 2.411 | 0.0949 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.9589 | 0.1027 | -2.2340 | 0.4013 | -5.568 | 0.9943 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Pesticides data
Pesticides assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pesticides in biota
- Accessment criteria for pesticides in biota
Media : Biota (Blue mussel soft body)
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : DDE (p,p')
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_Conwy_sh02, Conwy Sands (Conwy Bay)
Determinand : DDE (p,p')
Units : μg kg-1 wet weight
Data extraction : 30 April 2020