For instance, if all the 35 turbines operated by xAI were using add-on air pollution control technology to achieve a NOx emission rate of 2 ppm-as xAI's consultant agreed it would-they would emit about 177 tons of NOx per year, as opposed to the 1,200 to 2,100 tons per year they currently emit, the letter said.
The Environmental Protection Agency finalized rules for the rubber tire industry, specifically previously unregulated rubber processing, last November through amendments to the National Emission Standards for Hazardous Air Pollutants.