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November 6, 2020 02:10 pm
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/w3wKNp6l_14/india-and-pakistan-dominate-whos-air-pollution-database
India and Pakistan Dominate WHO's Air Pollution Database
At this time of year, agricultural burning adds to the air pollution problems across northern India and Pakistan. The region contains 16 of the 20 most polluted cities in the World Health Organization's global PM2.5 database. But are these the most polluted places ever recorded? Lack of measurements make historic comparisons difficult, but we have some clues. From a report: More than 200 years ago, Benjamin Franklin was famously among the first scientists to study electricity in the atmosphere. Lightning is the most obvious manifestation, but air pollution also changes the electrical properties of our air. Electrical measurements near Hyde Park in about 1790 suggest 18th-century London's particle pollution was perhaps half the annual average in the most polluted cities in modern India.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/w3wKNp6l_14/india-and-pakistan-dominate-whos-air-pollution-database
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