When did we start tracking smog levels?



  1. 0 Votes

    individual cities started tracking smog levels at different times thoughout history. Before 2006, smog levels were believed to be city issues, and were not widely tracked. In march of 2006, “a group of scientists from Ronald Cohen’s laboratory in UC Berkeley’s College of Chemistry traveled to Mexico City, one of the largest, most polluted cities in the world, to explore these questions and to examine some of the broader environmental consequences of urbanization.”

Please signup or login to answer this question.

Sorry,At this time user registration is disabled. We will open registration soon!