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 | 55.17 | 57.74 | -24.58 | 49.17 | |||
linear | 2 | 55.20 | 60.54 | -23.60 | 47.20 | 1.966 | 1 | 0.1609 |
smooth (df = 2) | 3 | 57.01 | 67.01 | -23.50 | 47.01 | 0.197 | 1 | 0.6572 |
smooth (df = 3) | 4 | 58.28 | 76.28 | -23.14 | 46.28 | 0.725 | 1 | 0.3946 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 3.553 | 4.383 | 0.8306 | 0.5638 | 1.473 | 0.1789 |
last 20 years | 2005 | 2018 | 3.553 | 4.383 | 0.8306 | 0.5638 | 1.473 | 0.1789 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 80.09 | 103.00 | 0.2515 | 0.3888 | 0.647 | 0.2679 |
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_se02 (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_se02 (Fladen Ground)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020