『LA AIR QUALITY MOSTLY GOOD TO MODERATE TODAY』のカバーアート

LA AIR QUALITY MOSTLY GOOD TO MODERATE TODAY

LA AIR QUALITY MOSTLY GOOD TO MODERATE TODAY

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 Today’s air quality in Los Angeles is generally good to moderate, with most regions experiencing clean air and some areas reporting only slightly elevated levels of particulate matter and ozone. The official forecast shows Air Quality Index values ranging from 39 to 58 across the city, indicating good to moderate conditions depending on the location and time of day. Central Los Angeles County, East San Fernando Valley, and East San Gabriel Valley show moderate air quality with AQI values between 53 and 58, primarily due to fine particulate matter (PM2.5) and ozone levels, while coastal and western areas report AQI values near 39, considered good and safe for outdoor activity[2].

Throughout 2025, Los Angeles air quality has shown improvement when compared to previous years. The yearly average AQI so far stands at 46, which is the lowest and therefore best of the past six years. More than two-thirds of this year’s days have had air quality below the World Health Organization’s recommended limit, although about a third of the days have exceeded it, especially during wildfire events or high ozone periods. Today’s readings reflect this positive trend, with cleanest levels observed in the early morning and late evening hours[1].

Despite these improvements, residents with pre-existing respiratory or heart conditions are still advised to take precautions during times when the AQI approaches the moderate threshold. Official health guidance recommends limiting strenuous outdoor activities, especially in areas and times of day where PM2.5 or ozone readings are higher. Typical seasonal patterns include slightly higher air pollution from midday into the early evening, coinciding with increased traffic and sun-induced ozone formation.

Recent UCLA-led research confirms that local wildfires, such as those in January 2025, can significantly worsen air pollution and cause localized hazardous AQI spikes. However, these events have been rare this year and do not currently impact today’s forecast[3][4].

Overall, Los Angeles air quality today is suitable for most people to enjoy outdoor activities, with only minor precautions necessary for sensitive groups.

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