Washington, D.C. experiences its worst air quality of the year during the July 4 weekend after smoke from a large Independence Day fireworks display raises pollution levels across the city. Multiple outlets report that particulate matter concentrations surge for several hours following a roughly 40-minute show over the National Mall. According to monitoring and analysis cited by the reports, hourly levels of particulate pollution rise to several times pre-fireworks measurements, with concentrations reaching values considered “very unhealthy” for the general public. One outlet reports that the city briefly records the worst air quality among major cities worldwide during that period. The elevated pollution is linked to smoke from the fireworks display rather than other sources, and data are drawn from air-quality measurements released after the weekend. The reports also note public concern about health risks from breathing the polluted air for hours after the event. The fireworks show is described as large and highly visible, with the smoke affecting air quality citywide, including surrounding neighborhoods beyond the immediate National Mall area.
Washington’s Fourth of July fireworks produce record-setting unhealthy air quality
Washington, D.C. experiences its worst air quality of the year during the July 4 weekend after smoke from a large Independence Day fireworks display raises pollution levels across the city. Multiple o...
- Washington, D.C. records its worst air quality of the year over the July 4 weekend.
- Smoke from a major fireworks display over the National Mall increases particulate pollution for several hours.
- Hourly particulate matter concentrations rise to multiple times pre-fireworks levels.
- Air quality is described as “very unhealthy” or “unhealthy” for the public during the period after the fireworks.
- The city briefly ranks among the worst air quality levels among major cities worldwide, based on monitoring data.
Hourly concentrations of particulate matter rose to 6.7 times their pre-fireworks levels, according to an analysisWashington DC residents breathed in “unhealthy” air for hours after a 40-minute Independence Day fireworks show over the National Mall on Saturday night, with the country’s capital briefly recording the worst air quality of any major city in the world.The highly emitting display, which the president called “spectacular”, came as the Trump administration rolls back an unprecedented number of pollution controls. Continue reading...
5 hours agoThe U.S. capital, Washington, saw its worst air quality of the year over the July 4 weekend, as smoke from a massive fireworks display sent pollution soaring to levels considered very unhealthy for the entire public, data showed Monday.
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