Assessing the Impact of Sulfur Atmospheric Deposition on Terrestrial Ecosystems Close to an Industrial Corridor in the Southeast of Mexico
- 1 Chemistry Faculty, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
- 2 Chemistry Faculty, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
- 3 Mexican Institute of Petroleum, Marine Zone, Ciudad del Carmen, Campeche, Mexico
- 4 Chemistry Faculty, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
- 5 Sciences of Health Faculty, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
- 6 Center of Environmental Sciences Research, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
- 7 Chemistry Faculty, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
- 8 Chemistry Faculty, Autonomous University of Carmen, Ciudad del Carmen, Campeche, Mexico
Abstract
The main objective of this research work was to diagnose the vulnerability of terrestrial ecosystems to S deposition in Atasta region in Campeche State, Mexico, comprising two simultaneous sampling programs in both, soil and atmospheric deposition on an annual basis during three climatic periods: dry, rainy and cold fronts seasons. From the estimation of soil properties estimation (pH, texture, mineralogy, cationic exchange capacity, and basis saturation %), critical loads and sensitivity classes were assigned to sampled soils based according to the empirical methodology proposed by UNECE. During the dry season, 10 sites fell into sensitivity class 2 (moderately sensitive) and 3 (sensitive). On the other hand, during the rainy season, 8 sites showed a sensitivity class 1 (highly sensitive) and 2 sites presented a sensitivity class 2 (moderately sensitive); whereas along cold fronts season, 12 sites fell into sensitivity class 1 that corresponds to highly sensitive. Sensitivity classes showed a seasonal trend, with a higher sensitivity during rainy and cold fronts seasons; this agrees with the kind of sources influencing on the study area as a result of the prevailing meteorology during these climatic periods. Likewise, S concentration in atmospheric deposition was determined by turbidimetric method, and S deposition fluxes were estimated from surface area of the funnel opening of the sampling device and the sampling period. S deposition fluxes ranged from 0.29 and 14.06 kg S ha -1 ·yr -1 ; with a mean value of 8.57 kg S ha -1 ·yr -1 . From the comparison between the current deposition rates and proposed critical loads, exceedances percentages were obtained (from 1.65% to 62.8%) and mapped to identify critical zones of S deposition in the studied area. It was established the important role which mangrove vegetation plays in the attenuation of the potential ecological effects on terrestrial ecosystems of the study area associated to atmospheric deposition.
- Lovland, G., Andersen, B., Joffre, S., Pedersen, U., Hormand, M. and Reisell, A. (1992) Mapping Deposition of Sulphur, Nitrogen, and Base Cations in the Nordic Countries. Swedish Environmental Research Institute, Report B 1055.
- Kuylenstierna, J., Rodhe, H., Cinderby, S. and Hicks, K. (2001) Acidification in Developing Countries: Ecosystem Sensitivity and the Critical Load Approach on a Global Scale. Journal of the Human Environment, 30, 20-28. https://doi.org/10.1579/0044-7447-30.1.20
- Pardo, L., Fenn, M.E., Goodale, C., Geiser, L., Driscoll, C. and Allen, E. (2011) Effects of Nitrogen Deposition and Empirical Nitrogen Critical Load for Ecoregions of the United States. Ecological Applications, 21, 3049-3082. http://mds.marshall.edu/bio_sciences_faculty https://doi.org/10.1890/10-2341.1
- Cerón, R.M., Cerón, J.G., García, A., Ramírez, E., Aguilar, C., Montalvo, C., Córdova, A. and Alderete, A. (2015) Through Fall Deposition Patterns for Nitrogen and Sulphur on Ecosystems Adjacent to One Sour Gas Recompression Plant in Campeche, Mexico. Proceedings of International Conference on Recent Advances on Mechanics, Materials, Mechanical Engineering and Chemical Engineering, Barcelona, 7-9 April 2015, 195-202.
- Fenn, M.E., De Bauer, L.I. and Hernández-Tejeda, T. (2002) Summary of Air Pollution Impacts on Forest in the Mexico City Air Basin. In: Fenn, M.E., Bauer, L.I. and Hernández-tejeda, T., Eds., Urban Air Pollution and Forests: Resources at Risk in the Mexico City Air Basin, Ecological Studies Series, Vol. 156, Springer-Verlag, New York.
- UNECE (1996) Manual on Methodologies and Criteria for Mapping Critical Levels/Loads and Geographical Areas Where They Are Exceeded. UNECE Convention on Long-Range Transboundary Air Pollution. Federal Environmental Agency, Berlín, Texte 71/96.
- Turchenek, L.W. (2007) Properties of Sensitive Soils in the Athabasca Oil Sands Area, Alberta. Cumulative Environmental Management Association. Rural Municipality of Wood Buffalo. Report EE31131, Fort McMurray, Alberta.
- Nagel, H.D. and Gregor, H.D. (2001) Derivation and Mapping of Critical Loads for Nitrogen and Trends in Their Exceedance in Germany. The Scientific World Journal, 1, 936-944. https://doi.org/10.1100/tsw.2001.330
- Fenn, M.E., De Bauer, L.I., Quevedo-Nolasco, A. and Rodríguez-Frausto, C. (1999) Nitrogen and Sulphur Deposition and Forest Nutrient Status in the Valley of Mexico. Water, Air and Soil Pollution, 113, 155-174. https://doi.org/10.1023/A:1005033008277