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Most of the ozone production occurs in the tropical upper stratosphere and mesosphere. The total mass of ozone produced per day over the globe is about 400 million metric tons. The global mass of ozone is relatively constant at about 3 billion metric tons, meaning the Sun produces about 12% of the ozone layer each day. [1]
Paul Jozef Crutzen (Dutch pronunciation: [pʌul ˈjoːzəf ˈkrʏtsə(n)]; 3 December 1933 – 28 January 2021) [2] [3] was a Dutch meteorologist and atmospheric chemist. [4] [5] [6] In 1995, he was awarded the Nobel Prize in Chemistry alongside Mario Molina and Frank Sherwood Rowland for their work on atmospheric chemistry and specifically for his efforts in studying the formation and ...
Fluctuations in ambient air, due to weather or other environmental conditions, cause variability in ozone production. However, they also produce nitrogen oxides as a by-product. Use of an air dryer can reduce or eliminate nitric acid formation by removing water vapor and increase ozone production. At room temperature, nitric acid will form into ...
FILE - In this NASA false-color image, the blue and purple shows the hole in Earth's protective ozone layer over Antarctica on Oct. 5, 2022. Earth’s protective ozone layer is slowly but ...
At current rates of primary production, today's concentration of oxygen could be produced by photosynthetic organisms in 2,000 years. [4] In the absence of plants, the rate of oxygen production by photosynthesis was slower in the Precambrian, and the concentrations of O 2 attained were less than 10% of today's and probably fluctuated greatly.
Mario José Molina-Pasquel Henríquez [a] (19 March 1943 – 7 October 2020) [7] was a Mexican physical chemist. He played a pivotal role in the discovery of the Antarctic ozone hole, and was a co-recipient of the 1995 Nobel Prize in Chemistry for his role in discovering the threat to the Earth's ozone layer from chlorofluorocarbon (CFC) gases.
The Club World Cup will run just like past men’s World Cups, with the 32 teams divided into eight groups of four. The top two in each group will advance to the Round of 16. From there, single ...
President Joe Biden spoke to former President Donald Trump on the phone Wednesday to congratulate him on winning the presidency, the White House said in a statement. "President Biden expressed his ...