PESSOA, DIHEGO SOUZA; http://lattes.cnpq.br/8797044499355611; PESSOA, Dihego de Souza.
Résumé:
The contamination of soils, water bodies and other natural resources resulting from an
inadequate management of the final disposal of urban solid waste has become a
constant problem, acting as a source of significant environmental impacts and causing
risks to health and public safety. Areas described as dumps, even after deactivated,
continue to impact the environment for several years and can alter the natural
properties of the site and its surroundings. In this way the research was carried out
with the objective of evaluating the environmental impacts at final disposal sites of
deactivated solid waste in the municipalities of Campina Grande / PB and Toritama /
PE located in the Brazilian semiarid region. The study areas that are less than 10 km
from the headquarters of these municipalities, are located in environments unsuitable
for the deposition of Urban Solid Waste, because they are close to waterways, urban
expansion areas and highways. The present work deals with an exploratory and
descriptive field research. The qualitative characterizations of the Environmental
Impacts are the result of the spontaneous methodology with the use of the descriptive
list, being evaluated characteristics of the degraded areas from soil, water and air
quality analyzes as well as the identification of the vegetation species found in the
sites. Among the evaluated environmental impacts, the physical environment was the
most degraded, with the existence of predominantly saline soils, high sulfate and
salinity indexes at the water points, besides the atmospheric contamination with the
presence of gases that may present combustion and explosion risks where the
disposal of solid wastes was carried out for a period of 20 years. The presence of
pioneer species characterize a vegetation adapted to the environmental conditions and
the degradation of the site contributing to the environmental remediation process.
