EE CompliancePatternTrend
From Earth Science Information Partners (ESIP)
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Spatial and Temporal Pattern of PM2.5 Compliance (Approximate)
What is na Exceptional Event? (EE)
Causality Pattern
Temporal Pattern
According to the EE Rule, observationas can be EE-flagged if the concentration exceeds the standard due to the exceptional event.
- The leftmost figure shows a case when the 'exceptional' concetration raises the level above the standard.
- In the next case, the concentration from controllable sources is sufficient cause the exceedance. Such an exceedance is not a 'but for' case and should not be flagged.
- In the third case, there is no exceedance, hence no justification for EE flag.
Illustration Exceptional Events, EE and non-EE events by the EE Rule.
Data, Procedures, Tools
1999-2001
2000-2002
2001-2003
2002-2004
2003-2005
2004-2006
2005-2007
