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Air Quality Alerts

11 Alerts
June 27, 2022 9:21 AM

June 27 - Air Quality Detection: BoulderAIR ECC Station

The BoulderAIR ECC station detected peak methane concentrations of 5,293 ppb on June 27 at approximately 12:40 a.m. The plume was detected beginning at 7:30 p.m. on Sunday, June 26.

Since exposure to methane in the environment is not known to cause any...

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June 23, 2022 3:30 PM

June 22 - Air Quality Detection: BoulderAIR ECC Station

The BoulderAIR ECC station detected peak methane concentrations of 11,118 ppb on June 22, 2022 at approximately 9:10 p.m. The plume was detected for approximately one hour beginning at 8:30 p.m.

Since exposure to methane in the environment is not known...

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May 27, 2022 2:00 PM

May 19 - BoulderAIR ECC Station Methane Detection

The plume was detected for approximately 5 hours beginning at 3:30 am. Since exposure to methane in the environment is not known to cause any adverse health effects, there are no established Heath Guideline Values associated with methane, though it is a...

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May 27, 2022 1:00 PM

May 1 - Preliminary Air Quality Report - Ajax Kenosha Farms

The Preliminary Air Quality Report for the May 1, 2022 triggered canister at the Ajax Kenosha Farms Air Monitoring Station is available at https://trello.com/c/ttJsu6sr. Canister analysis shows continued evidence for a valid TVOC emission source...

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May 26, 2022 10:00 AM

May 18 - Repair and Maintenance to Ajax Landfill South Air Monitoring Station

Recent canister triggering events between the dates of April 28 and May 18 at the Landfill South Station was likely due to a mechanical malfunction with the individual sensor unit. This specific station was installed due to an upgrade process that...

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May 24, 2022 4:00 PM

May 8 - BoulderAIR ECC Station Fuel Detection

The ECC VOC plume event detected on May 8th at 6:05 a.m. shows a chemical signature that suggests that the plume originated from a release of liquid petroleum hydrocarbon fuel, such as gasoline or diesel fumes. During the peak, natural gas tracers, e.g....

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April 4, 2022 2:49 PM

April 3 - BoulderAIR ECC Station Methane Detection

The plume was detected for approximately 25 minutes and the elevated methane was not accompanied by other Volatile Organic Compounds (VOCs) measured. Colorado Department of Public Health & Environment (CDPHE) has been notified of the event.

Additional...

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March 24, 2022 1:07 PM

March 24 - Reports Available on Ajax Dashboard

Reports are for: Landfill North (March 2), Kenosha Farms (March 2), Landfill Northeast (March 4), Landfill South (March 4), Landfill Northeast (March 8), and Landfill Northeast (March 8). These full, completed reports are now available for viewing on the...

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March 14, 2022 10:40 AM

March 14 - Erie Landfill Northeast & North

The event at the Landfill Northeast station is part of a period of sustained elevated readings, which are being assessed to determine whether the readings are a result of instrument sensor signal shift, or an actual elevation in VOCs in the area.

The...

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March 10, 2022 8:54 AM

March 10 Follow-Up: Landfill Northeast Station

This judgement can be difficult, as the sensor on the station is responding to levels over 900 VOCs, but the CSU laboratory is only measuring ~50 in the canister. There is a possibility that real VOCs are being detected, but aren’t able to be collected or...

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March 8, 2022 12:01 PM

March 8 - Erie Landfill Northeast

This represents the third triggering event at this station in as many weeks and analysis from contracted atmospheric experts has been requested.

Additional information, including analysis of the canister, will follow as it becomes available. Analysis...

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