A University of Colorado Boulder researcher who previously worked in cannabis cultivation has received federal funding to study air quality conditions inside grow facilities, following at least two worker deaths attributed to occupational asthma.
The grant, awarded through the National Institute for Occupational Safety and Health (NIOSH), will support air quality testing across multiple Colorado cultivation sites. The researcher, who left the cannabis industry after experiencing respiratory issues, aims to identify specific airborne contaminants that pose health risks to workers.
"We know very little about what workers are actually breathing in these facilities," the researcher told MJBizDaily. "The industry has grown so quickly that workplace safety standards haven't kept pace."
The Health Toll
The study comes after two documented deaths from occupational asthma among cannabis workers. Both individuals developed severe respiratory conditions after prolonged exposure to cultivation environments. Industry observers note these cases likely represent just a fraction of workers experiencing respiratory problems, as many symptoms develop gradually and go unreported.
Cannabis cultivation facilities present unique air quality challenges. Workers face potential exposure to mold spores, plant allergens, pesticide residues, and dust from trimming operations. Unlike traditional agricultural settings, indoor cultivation often involves high humidity and dense plant concentrations in enclosed spaces.
The Centers for Disease Control and Prevention has previously identified cannabis processing as a potential occupational health concern, but comprehensive data on air quality conditions remains limited. Federal research restrictions—stemming from cannabis's Schedule I status—have historically made workplace safety studies difficult to conduct and fund.
Testing Protocol
The CU Boulder study will measure airborne particulates, volatile organic compounds, and biological contaminants across different facility types. Researchers plan to collect samples during various cultivation stages, from vegetative growth through harvest and trimming.
Participating facilities will remain anonymous, though researchers hope to recruit operations of varying sizes across Colorado. The state's mature cannabis market—with over 1,000 licensed cultivation facilities—provides an ideal testing ground.
Industry Response
Some larger operators have already implemented air filtration systems and personal protective equipment protocols. But many smaller cultivators lack resources for comprehensive safety programs. Industry groups have called for standardized workplace guidelines specific to cannabis cultivation.
"This research is overdue," said a spokesperson for a Colorado cannabis trade association. "Our workers deserve the same protections as employees in any other agricultural sector."
The study's findings could inform future regulations in Colorado and other legal markets. Several states are developing occupational safety frameworks for cannabis businesses, though most currently rely on general agricultural or manufacturing standards that may not address cultivation-specific hazards.
What's Next
Data collection is expected to begin within six months and continue for two years. Researchers will publish interim findings as they identify specific hazards. The final report will include recommendations for ventilation systems, protective equipment, and monitoring protocols.
The grant represents a broader shift in federal cannabis research policy. While cultivation and sales remain federally illegal, health agencies have increasingly funded studies examining real-world impacts in legal markets. NIOSH has identified cannabis as an emerging occupational health priority.
For workers in Colorado's $1.6 billion cannabis industry, the research could lead to concrete workplace improvements. Industry employment has grown to over 35,000 jobs statewide, with cultivation and processing roles accounting for roughly half that total.
This article is based on original reporting by mjbizdaily.com.
