Baywood Publishing Company
0047-2433
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Journal of Environmental Systems
BWES
300323
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28
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000028000320010101
Number 3/2000-2001
54AVEDFUG740
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10.2190/W9UP-LENR-RN33-FEMA
W9UPLENRRN33FEMA
193
A SCAVENGING-DEPENDENT AIR-BASIN ECOLOGICAL RISK ASSESSMENT (SABERA) MODEL APPLIED TO ACID RAIN IMPACT AROUND DELHI CITY, INDIA
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W9UPLENRRN33FEMA.pdf
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J. S.
PANDEY
V.
JOSEPH
National Environmental Engineering Research Institute, Nagpur, India
Many of even the most recently applied ecological risk assessment models have dealt with ecological risks only on the basis of single-species toxicity tests. Moreover, they have seldom treated the integrated and the complete ecological unit for the risk assessment. In other words, they have ignored parameters which regulate many of those very important ecological interactions at land-water, air-land, and air-water interfaces. Therefore, in view of the above-mentioned facts, a realistic ecological risk assessment model incorporating the essential interfacial ecological interactions has been developed for quantifying the impact of acid rain in air-basins. To start with, the model has been applied for the air-basin surrounding Delhi City in India. Variations in the ecological risks have been analyzed with respect to changes in four important parameters--leaf area index, precipitation intensity, plant-leaf stomatal density, and mixing height--as they are significantly different for different air-basins.
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