『LA Enjoys Good to Moderate Air Quality on Crisp Saturday』のカバーアート

LA Enjoys Good to Moderate Air Quality on Crisp Saturday

LA Enjoys Good to Moderate Air Quality on Crisp Saturday

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 Los Angeles basked in **good to moderate air quality** on this crisp Saturday morning, offering a welcome respite from the city's notorious smog battles. Real-time monitors in North Hollywood reported a **Good** Air Quality Index (AQI) reading as of Friday evening, with levels hovering in the 0-50 range, posing little risk to residents[2][4]. Across South Coast regions, forecasts peg Central LA at 55 (Moderate, PM2.5 dominant), Northwest Coastal at 50 (Good), and Southwest County at 44 (Good), remaining steady through the day[4].

This breath of fresh air contrasts sharply with LA County's troubling trends. Through most of 2025, the region ranked third nationwide for unhealthy air days, trailing only Riverside and San Bernardino Counties, with 90 unhealthy or hazardous days annually to date—spurred by ozone, NO2, PM2.5, and PM10[1]. Summer peaks were brutal: August tallied 24 such days, while wildfire smoke from 2025 blazes lingered in homes, worsening indoor pollution over time[1][7].

PM2.5 fine particles, often from traffic and distant fires, drive today's moderate pockets, but health officials note no broad alerts[2][4]. Sensitive groups—those with asthma or respiratory issues—should still limit strenuous outdoor time in Moderate zones (AQI 51-100)[2]. As winter winds disperse pollutants, LA's 11 monitoring stations from Pasadena to LAX confirm the AQI's broad snapshot[1].

Interestingly, evolving wildfire smoke chemistry amplifies risks: particles morph into lung-irritating ozone and formaldehyde mid-air, underscoring why clean days like today matter for the 10 million Angelenos chasing clearer skies[5]. Forecasts hint at similar conditions Sunday, courtesy of South Coast AQMD and EPA data[3][4].

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