Pollution prediction study : For nearly two decades, scientists collected rain and cloud water from the summit of Mount Washington in New Hampshire. At the time, the goal was to better understand pollution reaching one of the Northeast’s most extreme mountain environments.
What those samples eventually revealed was about how pollution travels and what determines how much of it arrives. By analyzing cloud and rainwater collected over 19 summers between 1996 and 2014, researchers discovered that the history of rainfall along an air mass’s journey can be just as important as where that air originated when it comes to predicting pollution levels, as per a report.