Flussturbulenzen können giftige Schadstoffe in die Luft schieben | Die Stadtteile in San Diego in der Nähe eines turbulenten Teils des Tijuana -Flusses verzeichneten einen stark erhöhten Spiegel an Wasserstoffsulfid, berichten Forscher in der Wissenschaft. Dies könnte eine der ersten durch Flüsse verursachten Verschmutzungskrisen sein.

>Toxic pollutants from a Southern California river are infiltrating the air.

>Polluted water surging along a turbulent section of the Tijuana River in San Diego can [release toxic gases, including hydrogen sulfide, into the air](http://www.science.org/doi/10.1126/science.adv1343?adobe_mc=MCMID%3D56669949929820197363319829291574143969%7CMCORGID%3D242B6472541199F70A4C98A6%2540AdobeOrg%7CTS%3D1756153641), researchers report in the Aug. 28 *Science*. In a nearby neighborhood, hydrogen sulfide — produced from sewage breakdown and known for its rotten egg smell — peaked at levels thousands of times the typical urban amounts.

>“As far as we can tell, this is one of, if not the first time, that we’ve seen a full-on air pollution crisis caused by a river, especially one so close to the community,” says Benjamin Rico, an atmospheric chemist at the University of California, San Diego.

>For decades, the Tijuana River has carried untreated sewage and toxic runoff toward the Pacific Ocean near the U.S.-Mexico border, posing [environmental and health threats](https://www.cdc.gov/drinking-water/causes/index.html) to those in contact with the water. While residents have long complained about the river’s foul smell, the water’s impact on air quality went overlooked.

[Read more here](https://www.sciencenews.org/article/river-turbulence-pollution-air) and the [research article here](https://www.science.org/doi/10.1126/science.adv1343?adobe_mc=MCMID%3D56669949929820197363319829291574143969%7CMCORGID%3D242B6472541199F70A4C98A6%2540AdobeOrg%7CTS%3D1756153641).