Why Are Specific Pollutants Chosen for Regulation?
The pollutants monitored by NAAQS are selected based on their prevalence, potential for harm, and the feasibility of regulation. For example, particulate matter (PM) can penetrate deep into the lungs and even enter the bloodstream, causing cardiovascular and respiratory issues. Ground-level ozone can trigger asthma and reduce lung function. These pollutants were chosen because they are common, manageable, and have significant health impacts.
