The Unexpected Origins of Perchlorates<\/p>\n
Researchers had previously suspected that perchlorates formed in the stratosphere, but they did not know the exact conditions and sources. The latest study reveals that these toxic chemicals form at altitudes between 6 and 31 miles (10 to 50 kilometers) above Earth\u2019s surface. <\/p>\n
Perchlorates are not typically found on common sulfuric acid particles in the stratosphere but instead attach to rarer particles from smoke and organic materials. These particles, which can originate from wildfires and other natural processes, make their way into the stratosphere where cosmic rays trigger the chemical reactions that produce perchlorates.<\/p>\n
\u201cWe don\u2019t know if changing the particles in the stratosphere will cause more perchlorate or not, said Daniel Murphy,\u201d the program lead in aerosol properties and processes at the National Oceanic and Atmospheric Administration (NOAA) Chemical Sciences Laboratory. <\/p>\n
Murphy emphasized the importance of further research:<\/p>\n
These were the most detailed measurements of the perchlorate. They had information we\u2019d never had before on what the perchlorate was like for that natural source in the stratosphere.<\/p>\n
The findings of the study were based on data gathered from NASA\u2019s WB-57 aircraft, which can reach altitudes of 62,000 feet (around 19,000 meters), much higher than the typical commercial flight altitude of 30,000 to 42,000 feet (9,100 to 12,800 meters). This high-flying aircraft provided unique insights into the formation of perchlorates in the upper atmosphere, revealing their presence on these unusual particles.<\/p>\n
The Impact of Pollution on Groundwater Contamination<\/p>\n
Once formed in the stratosphere, perchlorates eventually fall to the Earth\u2019s surface, where they can seep into groundwater<\/a>. The problem is that perchlorates can persist in the environment for over 10,000 years in dry, arid areas, making them difficult to remove once they infiltrate water supplies. This poses serious risks for human health, as prolonged exposure to perchlorates can interfere with thyroid function, leading to developmental and cognitive problems.<\/p>\n As Murphy pointed out, <\/p>\n \u201cWe know, for example, that wildfires are increasing globally and that might mean that this natural source of perchlorate might increase.\u201d<\/p>\n![\"Wastewater](\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2025\/09\/wastewater-pipe-1200x750.jpg\"\/)
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