CSEMP assessment of indeno[123-cd]pyrene in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 60.80 | 63.37 | -27.40 | 54.80 | |||
linear | 2 | 62.67 | 68.00 | -27.33 | 54.67 | 0.128 | 1 | 0.7206 |
smooth (df = 2) | 3 | 64.43 | 74.43 | -27.22 | 54.43 | 0.236 | 1 | 0.6269 |
smooth (df = 3) | 4 | 66.26 | 84.26 | -27.13 | 54.26 | 0.172 | 1 | 0.6779 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 3.777 | 3.919 | 0.1429 | 0.3971 | 0.360 | 0.7282 |
last 20 years | 2005 | 2018 | 3.777 | 3.919 | 0.1429 | 0.3971 | 0.360 | 0.7282 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 50.37 | 103.00 | 0.7153 | 0.2799 | 2.555 | 0.0169 |
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 sediment
- Accessment criteria for pah_(parent) in sediment
Media : Sediment (unsieved)
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Fladen_FlaOpenSea_se04 (Fladen Ground)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020