Marine Environment Monitoring and Assessment National database (MERMAN)
CSEMP assessment of bde28 in biota at North Dogger 1
Statistical analysis
Details
Media : Biota (Common dab liver)
Station : HumWash_HWOpenSeaNE_fi01 (North Dogger 1)
Determinand : BDE28
Units : μg kg-1 wet weight
Data extraction : 20 July 2018
Trend assessment
Analysis of variance
| Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
|---|---|---|---|---|---|---|---|---|
| mean | 1 | 48.54 | 57.54 | -21.27 | 42.54 | |||
| linear | 2 | 46.84 | 78.84 | -19.42 | 38.84 | 3.703 | 1 | 0.0543 |
Change in log concentration
| Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
|---|---|---|---|---|---|---|---|---|
| overall | 2005 | 2011 | -1.7845 | -2.6561 | -0.8716 | 0.3821 | -2.281 | 0.1069 |
| last 20 years | 2005 | 2011 | -1.7845 | -2.6561 | -0.8716 | 0.3821 | -2.281 | 0.1069 |
Status assessment
| Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
|---|---|---|---|---|---|---|
| FEQG | 0.07 | 120.00 | 7.444 | 0.256 | 29.047 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Organo-bromines data
Organo-bromines assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for organo-bromines in biota
- Accessment criteria for organo-bromines in biota
