PM2.5 Gap Widens: Mae Lao’s 92% Higher Reading Highlights Air-Quality Data Risks
Mae Lao recorded a PM2.5 of 7.3 µg/m³, 92% higher than Nathrop's 3.8, yet both carry IQAir's 'Good' label. With only one anonymous station per location, the data reveal thin coverage and forecast differences.
Analysis
