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Experts: VOC monitoring is complex; residents should report emissions to South Coast AQMD
Summary
SCS Engineers and city staff told residents that consumer sensors can't reliably fingerprint VOCs, that South Coast AQMD (regional) and CARB (state) regulate VOC emissions, and that Envirosuite is a pilot for odor reporting while regulatory testing requires specialized, costly equipment.
Residents at Cathedral City’s virtual town hall asked whether high volatile organic compound (VOC) readings shown on consumer sensors indicate hazardous emissions from nearby cannabis operations. Consultants and city staff urged caution in interpreting consumer sensor data and directed residents with VOC concerns to the regional regulator.
Armando Hurtado of SCS Engineers said odors are "tricky" and that consumer‑grade sensors used for PM2.5 cannot reliably identify VOC sources. "They can't really get the fingerprint," Hurtado said, explaining that…
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