Chemistry of precipitation at high altitudes: Inter-relation of acid-base components |
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| Affiliation: | 1. Department of Nutritional Sciences, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, UK;2. Centre for Environment and Sustainability, University of Surrey, UK;1. School of Psychological Science, Oregon State University , United States;2. ZRT Laboratory, Beaverton, OR, United States;3. Center for Neural Science, New York University, United States;4. Linus Pauling Institute, Department of Biochemistry and Biophysics, Oregon State University, United States;1. Division of Legal Medicine, Department of Community Medicine and Social Healthcare Science, Kobe University Graduate School of Medicine, Kobe, Japan;2. Forensic Science Laboratory, Hyogo Prefectural Police Headquarters, Kobe, Japan;3. Department of Legal Medicine, Ehime University Graduate School of Medicine, Toon, Japan;1. School of Pharmacy, Brac University, 66 Mohakhali, Dhaka, Bangladesh;2. Department of Pharmacy, Jashore University of Science and Technology, Jashore 7408, Bangladesh |
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| Abstract: | Data on the chemical composition of atmospheric precipitation for three high altitude WMO stations have been analyzed and critically interpreted using statistics of deposition and various ratio values. The stations are: Monte Cimone, Italy; Mauna Loa, HI, U.S.A.; and Alamosa, CO, U.S.A. The composition is quite variable, both within-station and station-to-station. There is a good correlation between reported alkalinity and Ca content for Monte Cimone. The data analysis suggests that H2SO4 is the main cause of “acid rain” at Mauna Loa. Two of the three stations show good association of NH4+ ion with NO3− ion while the former is not well correlated with SO42− ion at any of the stations. On the other hand, simple and multiple correlations indicate that sulfate is strongly related with alkali/alkaline earth elements. Thus, suspended particulate matter may be an important sink for the mass-removal of atmospheric sulfur in the lower troposphere. |
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