Unveiling the Limits of Existing Correction Factors for a Low-Cost PM2.5 Sensor in Cold Environments and Development of a Tailored Solution

PM 2.5 poses significant health risks and requires accurate monitoring. While the EPA’s high-cost Federal Reference Methods and Federal Equivalent Methods provide reliable data, they are often sparsely distributed, limiting community-scale assessments. Low-cost sensors like PurpleAir (PA) offer a pr... View More