When were the monitors deployed?
Equipment was placed onto poles from May 9-15. Following equipment configuration and calibration, the monitors were started and data collection began on May 18, 2019. Data collected ended on November 20, 2019 at which time the equipment was removed.
How long did the study last?
The study period lasted 6 months (May - November, 2019).
How many community meetings will be held?
4 meetings are planned to present information to the community. This includes 1 pre-launch meeting (May 2, 2019), 2 in-progress meetings (August 29, October 24), and one close-out meeting (TBD, after November 30) to discuss the data, findings, and implications for future follow-on studies.
Will the study results address health risk to the community?
No. The current study objective is to identify which airborne pollutants (from a list of expected pollutants) are present, and to measure their concentration in the air. The data will be analyzed to determine which criteria pollutants are most likely source-attributable to operations by the waste transfer station. Interpretation of the measured concentrations in comparison to health-risk based values is outside the scope of work for the first phase of the project. Health-risk based evaluations may be considered for future phases of the project. A phased approach, with pollutant identification and quantification as the first step, provides a path forward that appropriately conserves project resources so that future work involving health-risk assessment can be targeted to parameters which have been demonstrably determined as measurable and likely source-attributable.
Which pollutants are being tested for?
All monitor stations will test for:
- Nitric oxide (NO)
- Nitrogen dioxide (NO2)
- Ozone (O3)
- Respirable particulate matter (PM 2.5)
- Inhalable particulate matter (PM 10)
- Carbon monoxide (CO)
- Sulfur dioxide (SO2)
- Hydrogen sulfide (H2S)
- Methyl mercaptan (CH4S)
- Formaldehyde (CH20)
- Organic Solvents (VOCs)
Additionally, all monitor stations will record environmental conditions for:
- Relative humidity
- Atmospheric pressure
- Noise (20 Hz - 10,000 Hz range)
Two monitor stations (1 nearby waste transfer site & 1 at control site) will record:
- Weather data: wind-speed and direction
Where can I obtain more information about air quality in the greater Chicago metropolitan area?
Federal and State authoritative agencies provide an abundance of additional information on this topic. Relevant web pages include:
- US EPA web page for Criteria Air Pollutants. Link.
- Illinois EPA annual Air Quality Reports. Link.
- Illinois EPA outdoor air data. Link.
RHP will compile additional information and add to the FAQ Section following the May 2 kickoff meeting.