What is the primary pollutant of concern addressed by Rule 310?

• A. Carbon monoxide
• B. Particulate matter (PM)
• C. Nitrogen dioxide
• D. Ozone

Answer: (B)

The primary pollutant of concern addressed by Rule 310 is particulate matter (PM). This rule is specifically designed to regulate dust-generating operations, which includes activities that can lead to the release of finer dust particles into the air. Particulate matter is composed of tiny solid or liquid particles suspended in the air, which can arise from sources like construction sites, mining operations, and unpaved roads.

Controlling particulate matter is crucial because these particles can have significant health effects when inhaled, contributing to respiratory issues and other health problems. Therefore, Rule 310 focuses on establishing standards and guidelines to minimize dust emissions, ensuring cleaner air and better public health outcomes. Other pollutants, while important, are not the direct focus of this specific regulation.