About the Event Explorer

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Select an Event in the filter on the right and see the auto-triggered canister results (colored shapes) in context with 1-week Commons background measurements (gray bars) and the Health Guideline Values (black circles)

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Note: 1-minute Trigger Canister results (colored shapes) cannot be directly compared to 1-hour Health Guideline Values (black circles).  The HGV icons are provided for context.

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This interactive plot shows three important pieces of information:

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Gray Bars: 
The range of 1-week measurements at the Broomfield Commons site, which is central to Broomfield and 4 miles from the new oil and gas development concern in Broomfield.  This serves as an ambient background comparison range for Broomfield.

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Black Circles with Arrow:
The Health Guideline Value (HGV) in ppb for each compound, defined by the Colorado Department of Public Health and Environment.  Not all compounds have a HGV defined.

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Colored Shapes:
The concentration measurement of each compound (in ppb unless otherwise labeled) from the automated trigger sample(s) selected in the filter on the right.  
Hover over a point and see the actual concentration measurement and other details about the sample.

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