Projects

CSEMP assessment of chrysene in sediment at outer (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean193.9895.36-43.9987.98
linear290.7193.38-41.3682.71 5.265 10.0218
smooth (df = 2)380.7185.26-35.3670.7111.999 10.0005
smooth (df = 3)482.3589.55-35.1870.35 0.359 10.5491
smooth (df = 4)576.1887.07-31.0962.18 8.172 10.0043

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020174.6174.049-0.5686 0.1767-3.2170.0067
last 20 years200020174.6174.049-0.5686 0.1767-3.2170.0067

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 57.3 20.0-1.0530 0.1473-7.1481.0000
ERL 57.3384.0 1.9019 0.147312.911<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  chrysene in sediment at outer (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  chrysene in sediment at outer (Firth of Clyde)


Assessment plot

Assessment plot for  chrysene in sediment at outer (Firth of Clyde)


PAH (parent) data

PAH (parent) data for assessment of  chrysene in sediment at outer (Firth of Clyde)


PAH (parent) assessment

PAH (parent) assessment of  chrysene in sediment at outer (Firth of Clyde)


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