▼Air Quality Alerts
14 Alerts
August 17, 2022 11:08 AM
The BoulderAIR station located at the Erie Community Center recorded a methane plume with a peak concentration of 9,000ppb at 4:40 a.m. on Monday, Aug. 15.
Winds were light (1.22m/s) and out of the south (189.9°). Heavier alkaline and VOC concentrations...
Aug. 15 - ECC StationRead On...
July 26, 2022 10:20 AM
The current high and sustained Particulate Matter (PM) 10 and PM 2.5 readings which began in the afternoon on July 25 at the Boulder AIR ECC monitoring station are being investigated.
At this time, Boulder AIR experts suspect that the readings are an...
July 26 - High Particulate Matter ReadingsRead On...
July 26, 2022 9:52 AM
The BoulderAIR ECC Station detected peak methane concentrations of 5,328 ppb on July 23, 2022 at approximately 12:07 a.m. The plume was detected for approximately 30 minutes beginning at 11:40 p.m. on July 22.
Since exposure to methane in the...
July 32 - Methane Detection: BoulderAIR ECC Air StationRead On...
June 27, 2022 9:21 AM
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...
June 27 - Air Quality Detection: BoulderAIR ECC StationRead On...
June 23, 2022 3:30 PM
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...
June 22 - Air Quality Detection: BoulderAIR ECC StationRead On...
May 27, 2022 2:00 PM
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...
May 19 - BoulderAIR ECC Station Methane DetectionRead On...
May 27, 2022 1:00 PM
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...
May 1 - Preliminary Air Quality Report - Ajax Kenosha FarmsRead On...
May 26, 2022 10:00 AM
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...
May 18 - Repair and Maintenance to Ajax Landfill South Air Monitoring StationRead On...
May 24, 2022 4:00 PM
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....
May 8 - BoulderAIR ECC Station Fuel DetectionRead On...
April 4, 2022 2:49 PM
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...
April 3 - BoulderAIR ECC Station Methane DetectionRead On...
March 24, 2022 1:07 PM
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...
March 24 - Reports Available on Ajax DashboardRead On...
March 14, 2022 10:40 AM
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...
March 14 - Erie Landfill Northeast & NorthRead On...
March 10, 2022 8:54 AM
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...
March 10 Follow-Up: Landfill Northeast StationRead On...
March 8, 2022 12:01 PM
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...
March 8 - Erie Landfill NortheastRead On...