194 



BIG BEND NATIONAL PARK 



I 



4.23 

 2.11 

 i.06 

 0.53 

 026 

 13 

 0.0? 



Figure 1. High sulfur source contribution function for Big Bend National Park, Texas for July 1982- 



June 1992. Plotted values are the relative probabilities that air arrived from that area if 

 the sulfur concentration was high as compared to the probability that air arrived from all 

 directions with equal probability. 



GUADALUPE MTNS. NATIONAL PARK 





I 



3.02 

 1.51 



0.76 

 0.38 

 0.19 

 0.09 

 0.05 



Figure 2. High sulfur source contribution function for Guadalupe Mountains National Park, Texas 



for December 1981-November 1992. 



