Avaliação Ambiental em área próxima á antiga Indústria Têxtil, Rio Tinto – PB

Abstract

With the growth of population and consumption needs, industries grew in number, areas of expertise and range of products. For many years there was no concern with the environment, resulting in major environmental problems. Sources of contamination include those containing elements are called heavy metals. This study aims to quantify the concentration of chemicals, including heavy metals, in different parts of Montrichardia linifera (Aninga) as well as in soil and bodies of water near an ancient textile industry (Rio Tinto-PB), as well as evaluating the existence Contamination problems that favors the environment. For the diagnosis of quantification of chemical elements in soil, water and plants were conducted the following surveys: area location, photographic records, collection of soil, plant and water bodies. The Cu concentration in the soil was slightly higher than the reference quality Cetesb, unlike that found in the water content is below the permitted by law. High Cu content in the leaves of Aninga, characterizing it as good accumulator. The species showed no symptoms of toxicity to the element, and thus can be used in problem areas with metal. The iron present in the soil is within the range allowing for law, unlike the concentration found in the water. The high concentration of iron in the root of Aninga favored the development of non-toxicity symptoms in the species. The levels of zinc in soil and water are within the range allowing the Brazilian legislation. The Aninga showed no characteristics of a hyperaccumulator plant, probably due to the low concentration of the element in soil and water. Although the study area present heavy metals, their concentration seems not to cause harmful effects on the environment, however, the area monitoring should be performed periodically to occur not harmful changes to soil quality, groundwater and biota.