CSEMP assessment of BD153 in biota at Tees Bay
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 55.16 | 59.66 | -24.58 | 49.16 | |||
linear | 2 | 40.06 | 50.73 | -16.03 | 32.06 | 17.100 | 1 | <0.0001 |
smooth (df = 2) | 3 | 41.98 | 66.98 | -15.99 | 31.98 | 0.078 | 1 | 0.7805 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2003 | 2017 | 0.6178 | -2.4882 | -3.1060 | 0.3994 | -7.776 | 0.0006 |
last 20 years | 2003 | 2017 | 0.6178 | -2.4882 | -3.1060 | 0.3994 | -7.776 | 0.0006 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 0.083 | 0.012 | -1.935 | 0.237 | -8.179 | 0.9998 |
FEQG | 0.083 | 4.000 | 3.874 | 0.237 | 16.380 | <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
Media : Biota (Common dab liver)
Station : TyneTees_TTInter_fi03 (Tees Bay)
Determinand : BD153
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : TyneTees_TTInter_fi03 (Tees Bay)
Determinand : BD153
Units : μg kg-1 wet weight
Data extraction : 30 April 2020