1. Environmental Engineering Program, University of Colorado Boulder, Boulder, Colorado 80303, United States
2. Center for Environmental Education, Conservation and Research, Interamerican University of Puerto Rico, San Germán, Puerto Rico 00683, United States
3. University of Texas School of Public Health-El Paso Regional Campus, University of Texas Health Sciences Center at Houston, El Paso, Texas 79968, United States
4. Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, Indiana 47408, United States
5. Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States