Projects

CSEMP assessment of chromium in sediment at Lyme Bay

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean110.7512.25-2.37 4.75
linear211.6514.56-1.82 3.651.099 10.2946
smooth (df = 2)310.8115.81-0.40 0.812.841 10.0919
smooth (df = 3)412.5920.59-0.29 0.590.218 10.6403
smooth (df = 4)511.1423.39 1.43-2.863.451 10.0632

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920164.3574.5880.231130.214761.0760.3014
last 20 years199920164.3574.5880.231130.214761.0760.3014

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
ERL98.2781.00-0.19323 0.12909-1.4970.9209

 


Raw data with supporting information

Raw data with supporting information for assessment of  chromium in sediment at Lyme Bay


Raw data with assessment

Raw data with assessment of  chromium in sediment at Lyme Bay


Assessment plot

Assessment plot for  chromium in sediment at Lyme Bay


Metals data

Metals data for assessment of  chromium in sediment at Lyme Bay


Metals assessment

Metals assessment of  chromium in sediment at Lyme Bay


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for metals in sediment
  • Accessment criteria for metals in sediment