Public input search on Oregon dairy air pollution regulations

The Oregon Department of Environmental Quality is asking the public to weigh in on whether the state should begin regulating air pollution from large dairies.

In August, a coalition of 22 advocacy groups filed a petition for rulemaking with the state. They’re asking DEQ to declare large dairies sources of air pollution, just like factories.

Recent research from the lead petitioner, Food & Water Watch, found Oregon’s megadairies collectively release more than 17 million kilograms of methane each year, equivalent to the emissions from 318,000 cars.

Large dairies, or confined animal feeding operations, also emit ammonia, hydrogen sulfide and particulate matter, all of which can cause health problems in people.

DEQ will accept written comments on the petition until 4 pm Oct. 23.

To submit comments, go to or email

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