RESUMEN
A survey on the metal concentrations (As, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr, V, Zn) in beach water and sediments is reported from the tourist destination of Acapulco city on the Pacific coast of Mexico. The concentration of dissolved trace metals (DTMs) in beach water and acid leachable trace metals (ALTMs) in sediments indicated that they are anthropogenic in nature due to the increased tourist activities in the crowded beach locations. The statistical analysis indicates Fe and Mn play a major role as metal scavengers in both the medium (water and sediment) and the higher value of other metals is site specific in the study area, indicating that they are transported from the local area. Comparison results suggest that the beach water quality has deteriorated more than the sediments and special care needs to be taken to restore the beach quality.
Asunto(s)
Playas/estadística & datos numéricos , Sedimentos Geológicos/química , Metales/análisis , Agua de Mar/química , Contaminantes Químicos del Agua/análisis , Monitoreo del Ambiente , México , Contaminación Química del Agua/estadística & datos numéricosRESUMEN
The noise levels of Ambur town were studied in silence, residential, commercial and industrial zones. Noise levels were assessed in 22 locations in a typical peak and non-peak hours of a day. In non-peak hours, a gradual decrease in noise levels is detected. The results show that the noise pollution in the city is widespread throughout most of its area. The noise in these areas is composite in nature and generated from many sources near and far with no particular sound predominance. Based on the results, some remedial measures were suggested. Public participation, education, traffic management, structural designing play a major role in noise management.