Projects

CSEMP assessment of c2 phenanthrenes in sediment at outer (Firth of Clyde)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean195.6597.03-44.8289.65
linear288.6191.28-40.3180.61 9.037 10.0026
smooth (df = 2)375.8880.43-32.9465.8814.732 10.0001
smooth (df = 3)477.6984.89-32.8465.69 0.192 10.6614
smooth (df = 4)578.2189.10-32.1064.21 1.482 10.2235

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200020175.3254.476-0.8482 0.1658-5.1160.0002
last 20 years200020175.3254.476-0.8482 0.1658-5.1160.0002

Status assessment

No assessment criteria

 


Raw data with supporting information

Raw data with supporting information for assessment of  c2 phenanthrenes in sediment at outer (Firth of Clyde)


Raw data with assessment

Raw data with assessment of  c2 phenanthrenes in sediment at outer (Firth of Clyde)


Assessment plot

Assessment plot for  c2 phenanthrenes in sediment at outer (Firth of Clyde)


PAH (alkylated) data

PAH (alkylated) data for assessment of  c2 phenanthrenes in sediment at outer (Firth of Clyde)


PAH (alkylated) assessment

PAH (alkylated) assessment of  c2 phenanthrenes in sediment at outer (Firth of Clyde)


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