| Autor: |
León-Borges JA; Universidad de Quintana Roo, Av. Chetumal SMz 260 Mz 16 y 21 Col. Prado Norte, 77519, Cancún, Mexico., Viveros-Jiménez F; EFINFO. Edificio Miguel Hidalgo, Anzures 510, Mariano Escobedo, 11590, Mexico City, Mexico., Rodríguez-Mata AE; CONACYT-Tecnológico Nacional de México/Instituto Tecnológico de Culiacán, Av. Juan de Dios Bátiz 310 Pte. Col. Guadalupe, 80220, Culiacán Rosales, Sinaloa, Mexico., Lizardi-Jiménez MA; CONACYT-Universidad Autónoma de San Luis Potosí, Sierra Leona 550, Lomas 2da. Secc., 78210, San Luis Potosí, Mexico. chamarripas@yahoo.com.mx. |
| Abstrakt: |
Cenotes are naturally occurring flooded caves that are frequent in Mexico's Yucatan Peninsula; they result from the collapse of limestone bedrock into the regional groundwater table. Cenotes in Quintana Roo are important ecological and economic hot spots but are susceptible to anthropogenic pollution. In this study, we collected water samples from 11 cenotes over multiple years to evaluate polycyclic aromatic hydrocarbon (PAH) concentrations and patterns as associated with tourist traffic. The primary PAHs detected in samples included fluoranthene, anthracene, phenanthrene and naphthalene, with total PAH concentrations increasing almost fivefold for cenotes sampled from 2016 to 2017. This is compared to only a 7% increase in tourist traffic during these years. Multivariate statistical analysis of the PAH concentration data suggests that diesel, gasoline and asphalt are the most likely pollution sources and that they are associated with periods of increased tourist traffic. |
Full text from SpringerLink