CSEMP assessment of DDE (p,p') in biota at Roa Island (Morecambe Bay)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | -0.58 | 3.92 | 3.29 | -6.58 | |||
linear | 2 | -3.04 | 7.63 | 5.52 | -11.04 | 4.457 | 1 | 0.0347 |
smooth (df = 2) | 3 | -1.57 | 23.43 | 5.78 | -11.57 | 0.529 | 1 | 0.4671 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 1999 | 2015 | 0.0203 | -0.4283 | -0.4486 | 0.2036 | -2.204 | 0.0787 |
last 20 years | 1999 | 2015 | 0.0203 | -0.4283 | -0.4486 | 0.2036 | -2.204 | 0.0787 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.6516 | 0.1027 | -1.8477 | 0.1626 | -11.365 | 1.0000 |
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_MorecambeBay_sh01, Roa Island (Morecambe Bay)
Determinand : DDE (p,p')
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_MorecambeBay_sh01, Roa Island (Morecambe Bay)
Determinand : DDE (p,p')
Units : μg kg-1 wet weight
Data extraction : 30 April 2020