CSEMP assessment of indeno[123-cd]pyrene in biota at Crosby (Mersey Channel)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 47.92 | 51.52 | -20.96 | 41.92 | |||
linear | 2 | 49.27 | 57.27 | -20.64 | 41.27 | 0.642 | 1 | 0.4230 |
smooth (df = 2) | 3 | 49.48 | 66.14 | -19.74 | 39.48 | 1.795 | 1 | 0.1803 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2002 | 2018 | 1.4231 | 0.9685 | -0.4546 | 0.5458 | -0.833 | 0.4368 |
last 20 years | 2002 | 2018 | 1.4231 | 0.9685 | -0.4546 | 0.5458 | -0.833 | 0.4368 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 2.6341 | 0.3912 | -1.9071 | 0.3399 | -5.610 | 0.9993 |
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (parent) data
PAH (parent) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(parent) in biota
- Accessment criteria for pah_(parent) in biota
Media : Biota (Blue mussel soft body)
Station : IrishSea_LiverpoolBay_sh01, Crosby (Mersey Channel)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020
Station : IrishSea_LiverpoolBay_sh01, Crosby (Mersey Channel)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 wet weight
Data extraction : 30 April 2020