Unexpected Side Effect to Cleaning Up Urban Air – تأثير جانبي غير متوقع لتنظيف الهواء في المناطق الحضرية
An imbalance between the trends in two common air pollutants is unexpectedly triggering the creation of a class of airborne organic compounds not usually found in the atmosphere over urban areas of North America, according to a new study from Caltech.
For decades, efforts to reduce air pollution have led to cleaner air in U.S cities like Los Angeles, with subsequent improvements in...