The EPA’s air monitoring network is disappearing. Budget cuts, staff reductions, and regulatory rollbacks are gutting the infrastructure that tracks airborne pollution in rural America. For farmers and farmworkers, the consequence is stark: they’re losing the ability to measure what they’re breathing and the data they need to hold polluters accountable.
Air monitoring is foundational to environmental enforcement. Without it, there’s no baseline. Without a baseline, violations are invisible. The EPA maintains a network of ambient air monitors across the country that track pollutants like ozone, particulates, sulfur dioxide, and nitrogen oxides. These monitors feed data into the National Air Quality database, which triggers enforcement actions, informs permitting decisions, and gives communities early warning of air quality problems.
Agriculture generates substantial air pollution. Livestock operations emit ammonia and particulates. Pesticide application creates chemical aerosols. Dust from tilling and harvest blankets agricultural regions. Grain handling facilities, fertilizer plants, and concentrated animal feeding operations all produce detectable air pollution. In agricultural regions, the nearest monitor might be the only mechanism available to measure whether nearby operations are complying with Clean Air Act limits.
For farmworkers and farm families, air quality matters to health. Chronic exposure to agricultural dust, pesticide residues, and ammonia increases risks of respiratory disease, asthma exacerbation, and chemical poisoning. Farmworkers already face occupational exposure without adequate protective equipment or enforcement. When air monitoring disappears, regulatory oversight vanishes with it.
The Trump administration has accelerated the dismantling. Recent EPA budget proposals would eliminate or severely reduce funding for air quality monitoring programs. The agency has cut field staff. State environmental programs, which run much of the day-to-day monitoring in partnership with EPA, have seen federal support shrink. In rural areas dependent on federal co-funding, monitors are being decommissioned for lack of resources.
The consequence is documented. Environmental organizations including the Sierra Club, Environmental Defense Fund, and Natural Resources Defense Council have warned that EPA air monitoring is reaching a crisis point. Without monitoring data, the Clean Air Act becomes largely unenforceable in rural areas. Facilities can emit pollutants without detection. Communities can’t prove harm. Farmers can’t demonstrate that a neighbor’s operation is violating pollution limits.
For agricultural workers, the gap in air monitoring means lost recourse. A farmworker developing respiratory symptoms from chronic exposure to ammonia or pesticides from a nearby facility has no baseline air quality data to support a health claim or safety complaint. Federal and state agencies have no monitoring data to trigger an inspection. The operation continues unmonitored.
This isn’t abstract. In the North Carolina agricultural belt, where swine facilities concentrate in areas with limited air monitoring, nearby residents report respiratory illness clusters with no regulatory pathway for investigation. In the Central Valley of California, where agricultural dust combines with industrial emissions, air quality monitors have been decommissioned due to budget constraints. In the Upper Midwest, where large-scale grain operations proliferate, the monitoring network has thinned to the point where pollution events go unrecorded.
Real enforcement of the Clean Air Act depends on data. Data depends on monitors. When budgets disappear, monitors stop. When monitors stop, enforcement stops. When enforcement stops, polluters operate freely.
Some agricultural groups and industry associations have opposed strict air quality monitoring, arguing that compliance costs are high and monitoring is burdensome. That perspective is honest about the tradeoff: stronger monitoring would require facilities to reduce emissions or face penalties. But it reverses who bears the cost. Shifting costs from polluters to farmworkers and farm families—through lost health, lost data, lost recourse—is not a reasonable policy choice.
Real solutions begin with restoring and maintaining a robust air monitoring network. States need adequate federal funding to operate monitors. EPA field staff need the capacity to follow up on data showing violations. Agricultural operations, like all industrial operations, need to operate under environmental accountability, which requires measurement.
Farmers who want to operate responsibly need baseline data showing their operations’ actual emissions. Farmworkers need protection, which requires monitoring and enforcement. Communities need to know whether the facilities nearby are complying with air quality limits. All of that depends on monitors running and data flowing.
The choice to defund EPA air monitoring isn’t saving money; it’s externalizing costs onto communities. Those costs fall heaviest on farmworkers and farm families who have the least power to demand accountability.
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