Environmental impacts in the necropole area in the municipality of Caçapava do Sul-RS
Notice bibliographique
Résumé
In the face of population growth, the natural resources are being overused by the inhabitants of the planet. Historically, sites for the allocation of cemeteries were chosen due to their low economic value, and without any previous geological and hydrogeological studies, so that the soil and water could be exposed to several contaminants. The objective of this work was to determine the soil and groundwater contamination potential in the area of influence of the municipal cemetery of Caçapava do Sul, in Rio Grande do Sul. It has a surficial area to the 0,018 km2. In the determination of the physical characteristics of the soil, was carried out by means of the Guelph permeameter and determined the infiltration coefficient in 7 distinct points. The subsurface was also carried out by means of the geophysical technique of electrically conducting the electric resistance, which allows evaluating anomalies in the resistivity values and from this estimate the geological material that composes the subsoil. The use of the GOD system for evaluation of the aquifer pollution vulnerability. The metal concentration present in water and soil were determined using the Inductively Coupled Plasma Atomic Emission Spectrometry and Inductively Coupled Plasma Mass Spectrometry technique. According to the physical characteristics of the soil, a highly permeable soil was identified. In relation to the infiltration coefficient, values range between 21 to 85 L/m2.day. So the physical techniques indicated a wide variability in the constitution of soils, regolith and granite rock. The subsurface of the terrain was investigated in 6 cable sections. Through the resistivities were identified materials from the weathering of granite, consolidated rock and the saturated zone in water and salts beneath of the soil. With the application of the GOD system it was estimated the class of extreme vulnerability to aquifer where the cemetery is implanted. From the chemical characteristics of the groundwater, several elements were below the Limit of Quantification established by the directive Nº 2914/2011 of M.S. The Manganese presented high values, being in disagreement with the quality reference values of the groundwater. The concentrations of the elements present in the soil include Zinc, Copper and Lead, which may come from funeral props such as metal coils of coffins and paints and varnishes used to preserve wood. Barium presented concentrations possibly being of natural origin. Sodium showed elevated concentrations, which may be an indication of soil contamination by cemetery leachate, since it is a solution rich in salts. The soil was classified as class 3 according to CONAMA 420/2009. The results of this work show that the choice of an area for implantation of cemetery activity must be carried out with great care, not only aiming at the lowest financial cost, but also the environmental sustainability. So we conclude that the use of improper areas do not come to compromise the quality of the environment and life of the people living in the vicinity of these places.
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Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».