Study Concerning the Health Impact of

Indoor Marijuana Cultivation

DENVER—National Jewish Health’s Dr. John Martyny will announce the results of a study today designed to determine the health effects from indoor marijuana grow operations.

The study was conducted in conjunction with the Colorado Drug Investigators Association (CDIA), Colorado Association of Chiefs of Police (CACP), and County Sheriffs of Colorado (CSOC).  These organizations had a growing concern about the safety of their officers involved in entering and dismantling indoor grow operations. 

The Colorado Drug Investigators Association secured a federal Justice Assistance Grant (JAG) through Colorado’s Division of Criminal Justice to finance the study, with the chiefs and sheriffs associations helping to provide some additional funding.

Dr. John Martyny, a professor at National Jewish Health, was the primary researcher on this project.  Dr. Martyny and his team also partnered with law enforcement in 2002 when they conducted a study regarding the health impact of clandestine methamphetamine labs. 

This study resulted in greater safety policies for officers entering and dismantling labs.  CDIA Vice President Jerry Peters and CDIA Legislative Liaison Jim Gerhardt coordinated the arrangements for Dr. Martyny and his team to examine and study actual indoor marijuana grow operations.  Dr. Martyny tested thirty indoor marijuana grows. 

His research showed that, in residential and commercial structures, it was difficult to control chemical contamination from pesticides and fertilizersThe study also showed that plant irrigation resulted in increased moisture that could damage building material, result in excessive mold growth, and pose a risk of fire and electrocution

The study shows that highly-elevated airborne levels of mold spores within these structures subjected occupants, emergency personnel and other individuals to significant potential health hazards.  Potential health effects include hypersensitivity pneumonitis, allergic rhinitis, asthma and other respiratory diseases. 

Another concern was elevated carbon dioxide levels which, if generated using fossil fuel combustion, can result in the production of carbon monoxide resulting in significant health effects, or death, to exposed individuals.

Dr. Martyny’s study shows that the greatest risk is to individuals residing in the residence.  However, others may be impacted as well, particularly in multi-family buildings which may allow chemicals used and mold spores to be introduced into ventilation systems, exposing other residents.  Exposure to children living in these operations also may result in illness, injury or death to an innocent child.  Fires may cause damage not only to the indoor grow but also surrounding houses

Lastly, Dr. Martyny cites that, since these operations may go undetected, an unsuspecting family buying the residence at a later date may be put at risk of adverse health effects due to residual mold contamination. 

Based on the study and its findings, Dr. Martyny believes that the primary exposure present in indoor marijuana grows consists of high levels of mold spores, low-toxicity pesticides and other chemicals, carbon monoxide and electrical hazards.  The recommendation for initial responders, such as a SWAT team, includes fire-resistant gear, chemical-resistant gloves, boots, and a water-resistant and disposable respirator.  Officers with any kind of immune system deficiencies should avoid entry into an indoor marijuana grow.  He recommends that investigators involved in the removal phase wear full-face air-purifying respirators as well as other protective clothing.  Dr. Martyny emphasizes that his recommendations are minimum suggestions and that, when in doubt, safety equipment should be upgraded.

A copy of the report may be found on the Association’s website

About josiahe

Watching closely, working to understand all I may, in this "Age of Information", even from my limited view, I can see much of what's going on ..... and I oft see it's going to impact all of us which is why I share it. My focus is to expose evil, and to serve my Lord and savior Jesus in whatever way He shows me. If one waits long enough, better writers will come along and comment; it's just that I have so little patience with the evil that lurks among us and I've wasted so much time and now, there is so little left! WELCOME!
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