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  • The farm hazards we don’t see
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    The farm hazards we don’t see

    Provided by Ohio Bureau of Workers’ Compensation | Posted on

    February 9, 2026



    dairy cattle in barn

    Everyone knows that farms can be dangerous places. Grain in bins, ladders, and animals are all things we can see that might pose a risk. What about the things we don’t see? Gases, vapors, and fumes can all create risk, too. How can we measure and protect ourselves from them?

    Methane

    If you have animals, you have manure. And if you have manure, you have methane. To paraphrase the old adage by Paracelsus, “The dose makes the poison.” Methane in small quantities is not a high risk. The tricky part is knowing when there is too much methane in the air that we breathe. Too much, and without warning, your life could be at stake.

    There are things that increase methane concentrations. One is a confined space, like inside a manure pit. Concentration increases because there is not as much air circulation as in an open field. Agitation can also cause an increase in methane. If the manure has been sitting undisturbed and it becomes agitated, such as someone walking through it, removing a pump, or moving it to a new location, the methane that was under the surface is now released into the air where it can be inhaled.

    The only real way to know whether the methane concentration in the air is dangerous is by measuring it with a gas meter.

    Nitrous oxides

    When silage is put up, whether in silos or bunkers, silage gas will be given off for a period of time afterward. Sometimes, a green exhaust can even be seen. Don’t breathe the green air! This air can contain a lot of different chemicals, but most notably, nitrous oxides. Like methane, without warning, this can be instantly life-threatening.

    Again, it’s impossible to know what the concentration is unless you measure it with a gas meter. So, stay away from silage until measurements have been taken and you know the area is safe.

    Carbon monoxide

    Carbon monoxide is another gas that is common around farms. It is produced by all internal combustion engines, whether on your vehicle, a farm tractor, or a generator. It’s also produced by space heaters like salamanders that run on propane or kerosene. Using these engines or heaters outdoors rarely causes problems, but if you run one in your barn or shop on a cold winter day and close all the doors to keep the heat in, you may start to notice a headache or nausea. Thankfully, this gas gives you a little more warning and you have time to get to fresh air if you heed the warnings.

    Because these hazards are present all the time on farms, it is easy to become complacent around them, so please remember that if the concentration is high enough, they can be deadly. The only sure way to know the concentration is to measure, but keeping these guidelines in mind may help you identify when it is either necessary to measure or just stay away.

    To learn more about workers’ compensation coverage in Ohio, apply for coverage, or take advantage of BWC’s safety services, visit bwc.ohio.gov or call 800-644-6292.

    New and beginning farmers
    My first recommendation in your journey is to start out with a local farming friend or mentor along with joining an organization like Ohio Farm Bureau.
    Greg McGlinch's avatar
    Greg McGlinch

    Darke County Farm Bureau

    Growing Tomorrow Grant
    We’re just so thankful for the Farm Bureau and the foundation for helping put this together. And of course, the Boyert family for the vision they had with this grant. It’s jumping us forward 10 years. It’s unbelievable.
    Nathan and Jill Parriman's avatar
    Nathan and Jill Parriman

    Clermont County Farm Bureau

    Bringing the farm back to life
    I could not have done it without the resources I have found through Farm Bureau.
    Gretchan Francis's avatar
    Gretchan Francis

    Trumbull County Farm Bureau

    Youth pathways in Farm Bureau
    It wasn’t until I joined the Wilmington College Collegiate Farm Bureau that I truly saw how my passion could translate into leadership, advocacy and a career.
    Wyatt Morrow's avatar
    Wyatt Morrow

    Clinton County Farm Bureau

    Giving farmers a voice
    The issue of property taxation remains as one of the biggest challenges our members face today. Ensuring agricultural property is valued for its agricultural potential and not development is critical to the continued success of Ohio agriculture.
    Matt Aultman's avatar
    Matt Aultman

    Darke County Farm Bureau

    Select Partner Program
    Through the Select Partner program, we became educated in farm insurance and weren't just selling policies. It became more and more clear why farmers need an advocate like Ohio Farm Bureau.
    Chad Ruhl's avatar
    Chad Ruhl

    Farm manager, CSI Insurance

    Advocacy
    So many of the issues that OFBF and its members are advocating for are important to all Ohioans. I look at OFBF as an agricultural watchdog advocating for farmers and rural communities across Ohio.
    Mary Smallsreed's avatar
    Mary Smallsreed

    Trumbull County Farm Bureau

    Suggested Tags:
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