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Content Provider | SpringerLink |
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Author | Beverland, I. J. Crowther, J. M. Srinivas, M. S. N. |
Copyright Year | 1997 |
Abstract | The causal factors for episodic deposition of acidic material in rainfall cannot be fully understood from conventional daily network data. A brief review of the meteorological conditions leading to episodes is given. A definition of ‘episodicity’ was considered and applied to a 6 month data set collected at high temporal resolution using a microprocessor based acid rain monitor at a site in south-east England. The deposition was highly episodic for all of the measured variables when data from individual rain events were considered. Combining the data into daily averages resulted in changes of episodicity classification for several chemical species. A large percentage of the total deposition recorded during the field experiment occurred in a 5 day period when there was an independent report of ecological damage at other locations in England. Nitrate deposition showed the highest degree of episodicity with 51% of the 6 month total occurring during the 5 day episode. Meteorological details of the transport and wet deposition processes during this period were examined. Back trajectory analysis indicated that the episode was the result of pollutant loading in eastern and central Europe of the air masses reaching the site together with an absence of upwind precipitation scavenging. |
Starting Page | 73 |
Ending Page | 91 |
Page Count | 19 |
File Format | |
ISSN | 00496979 |
Journal | Water, Air, and Soil Pollution |
Volume Number | 96 |
Issue Number | 1-4 |
e-ISSN | 15732932 |
Language | English |
Publisher | Kluwer Academic Publishers |
Publisher Date | 1997-01-01 |
Publisher Place | Dordrecht |
Access Restriction | Subscribed |
Subject Keyword | acid deposition episodes acid rain back trajectory analysis precipitation scavenging sub-event chemistry sub-event sampling Hydrogeology Environment Atmospheric Protection/Air Quality Control/Air Pollution Terrestrial Pollution Waste Water Technology Water Pollution Control Water Management Aquatic Pollution |
Content Type | Text |
Resource Type | Article |
Subject | Pollution Environmental Engineering Water Science and Technology Environmental Chemistry Ecological Modeling |
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