{"url_path":"/weather/alerts/2.49.0.1.840.0.6316c33b030ae4c9357ac51c26fe237f5225f57b.001.1","section_key":"alert","section_title":"Air Quality Alert issued July 22 at 5:20PM PDT by NWS Los Angeles/Oxnard CA","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-22","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.6316c33b030ae4c9357ac51c26fe237f5225f57b.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Los Angeles/Oxnard CA"},"word_count":386,"has_tables":false,"body_markdown":"# Air Quality Alert: Air Quality Alert issued July 22 at 5:20PM PDT by NWS Los Angeles/Oxnard CA\n\n**Severity:** Unknown\n**Certainty:** Unknown\n**Urgency:** Unknown\n**Areas:** Eastern San Fernando Valley; Eastern San Gabriel Mountains; Interstate 5 Corridor; Los Angeles County San Gabriel Valley; Santa Clarita Valley; Santa Susana Mountains; Western San Fernando Valley; Western San Gabriel Mountains and Highway 14 Corridor\n**Issued by:** NWS Los Angeles/Oxnard CA\n**Sent:** 2026-07-22T17:20:00-07:00\n**Effective:** 2026-07-22T17:20:00-07:00\n**Expires:** 2026-07-27T20:00:00-07:00\n\n## Description\n* WHAT...The South Coast AQMD has issued an air quality alert due to\nharmful levels of ozone pollution.\nVisit https://www.aqmd.gov/alertinfo to check current and forecasted\nair quality levels.\n\n* WHERE...in the South Coast Air Basin and Coachella Valley. Levels\nof ozone pollution can vary by time and location depending on\nemissions and air pollution transport.\n\n* WHEN...until 8 PM Monday. The highest ozone levels typically occur\nin the afternoon and early-evening hours.\n\n* IMPACTS... Ozone air pollution can cause serious health problems,\nincluding trouble breathing, asthma attacks, and lung damage.\nEveryone can be affected, but sensitive groups such as people with\nlung disease, older adults, people who are pregnant, children, and\nthose who spend a lot of time outdoors are at greater risk.\n\n## Instructions\nTo protect your health, check air quality levels and act as needed:\n\n* When Air Quality Index (AQI) levels are \"Unhealthy for\nSensitive Groups\" (orange), sensitive groups as specified\nabove should limit extended or intense outdoor activity.\n* When AQI is \"Unhealthy\" (red), everyone may experience health\nimpacts. Sensitive groups should avoid extended time outdoors.\n* When AQI is \"Very Unhealthy\" (purple), sensitive groups should\navoid all outdoor physical activity. Everyone else should\navoid extended or intense outdoor activity.\n* When AQI is \"Hazardous\" (maroon), everyone should avoid all\noutdoor physical activity.\n\n* ADDITIONAL DETAILS...\n\nTo help keep indoor air clean when air quality is poor:\n\n* Keep windows and doors closed\n* Run your air conditioner and/or an air purifier\n* Do not use whole house fans or swamp coolers that bring in\noutside air if you have other methods to stay cool\n* Avoid other sources of pollution such as fireplaces, candles,\nincense, and grilling\n\nTo help minimize outdoor ozone air pollution levels:\n\n* Limit the use of gasoline powered lawn and garden equipment\nuntil evening hours\n* Try to delay trips to the gas station and the use of household\nchemicals until the evening"}