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California PM2.5 Alerts Persist as Riverside and Orange Counties Remain Unhealthy for Sensitive Groups

EPA data show PM2.5 remains elevated in Southern California under no-burn rules.

Los especialistas recomiendan a los habitantes de California permanecer en sus casas por los inusuales niveles registrados de una partícula dañina
En días con aire “no saludable” hay diversas medidas de precaución a tomar y, lo más efectivo, es quedarse en casa o usar mascarilla N95. (Crédito: Imagen creada por El Comercio MAG usando la IA de 'Perplexity')
En días con aire “no saludable” hay diversas medidas de precaución a tomar y, lo más efectivo, es quedarse en casa o usar mascarilla N95. (Crédito: Imagen creada por El Comercio MAG usando la IA de 'Perplexity')
PM2.5 en California mantiene en alerta a autoridades y propietarios de mascotas por el impacto de la mala calidad del aire. | Crédito: Imagen creada por El Comercio MAG usando la IA de Gemini

Overview

  • AirNow readings on Thursday show Metro Riverside County at AQI 121 and Central Orange County at AQI 109, both in the unhealthy-for-sensitive-groups range.
  • South Coast AQMD identifies PM2.5 as the primary pollutant and has activated a No Burn order across parts of Riverside County and nearby areas.
  • Officials advise children, older adults, and people with heart or lung disease to limit outdoor activity, stay indoors when possible, and use well-fitted N95 masks if they must go out.
  • HEPA filtration and checking real-time conditions on AirNow or local air-district sites are recommended to reduce exposure and guide day-to-day decisions.
  • The broader January episode has produced fluctuating readings in other states, with recent examples including Savannah at AQI 104 and Phoenix peaking near 127 before improving.