Soil Contamination
Mostrando 25-36 de 343 artigos, teses e dissertações.
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25. Pteridophytes as ecological indicators: an overview
RESUMO As pteridófitas apresentam grande potencial como indicadores ecológicos (EIs), mas pouco explorado, mostrado apenas em trabalhos esparsos. Portanto, para analisar esse potencial, revisamos artigos publicados, sites ou livros com pteridófitas como EIs, realizando buscas em cinco bases de dados acadêmicas e no Google. Selecionamos 134 estudos, feito
Hoehnea. Publicado em: 04/04/2019
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26. Leaching of Imidazolinones in Irrigation Systems in Rice Cultivation: Sprinkling and Flooding
RESUMO: Herbicidas do grupo das imidazolinonas têm sido utilizados em arroz irrigado e apresentado longa persistência no solo, principalmente em áreas de várzea, com baixa drenagem, podendo ocasionar contaminação ambiental. Objetivou-se, com este trabalho, avaliar a lixiviação e o residual dos herbicidas pertencentes ao grupo das imidazolinonas em si
Planta daninha. Publicado em: 18/02/2019
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27. Quantification study of Azithromycin drugs in soil, by the infrared technique with Fourier Transform (IFTR)
Resumo Algumas classes de drogas representam maior criticidade como contaminação ambiental; os antibióticos em geral representam os contaminantes mais potentes e que causam maiores danos ao meio ambiente. O objetivo deste trabalho é quantificar a porcentagem de contaminação do solo por Azitromicina em apresentações de 500 mg, através da aplicação
Rev. Ambient. Água. Publicado em: 04/02/2019
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28. Synergy between cadmium and zinc in bean plants cultivated in multi contaminated soils
ABSTRACT. Agricultural species are subjected to a variety of biotic and abiotic stresses, which are the main limitations to crop production. In this context, contamination by trace elements is characterized as an abiotic stress that represents an environmental problem. Due to the physical and chemical similarities between cadmium and zinc, these elements may
Acta Sci., Agron.. Publicado em: 17/12/2018
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29. Simultaneous biodegradation of phenol and cyanide present in coke-oven effluent using immobilized Pseudomonas putida and Pseudomonas stutzeri
ABSTRACT Discharge of coke-oven wastewater to the environment may cause severe contamination to it and also threaten the flora and fauna, including human beings. Hence before dumping it is necessary to treat this dangerous effluent in order to minimize the damage to the environment. Conventional technologies have inherent drawbacks however, biological treatm
Braz. J. Microbiol.. Publicado em: 2018-03
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30. Contamination and Soil Biological Properties in the Serra Pelada Mine - Amazonia, Brazil
ABSTRACT Discovered in 1980 and unleashed an utter gold rush of the modern era, Serra Pelada was the largest open-air mine in Brazil. About 80,000 gold prospectors worked there until 1984, when the gold pits were flooded. The environmental impact caused by mining inflicted irreversible damage to the ecosystem, with the formation of a large lake and piles of
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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31. Design of Ground Penetrating Radar Antenna for Detecting Soil Contamination at L-band Frequencies
Abstract Maintenance of oil pipelines is an issue of great concern for oil companies. Soil contamination is caused by oil leaks from underground pipelines. Ground penetrating radar (GPR) is a rapid and relatively inexpensive technique used for locating and characterizing soil contaminated sites without producing fractures and causing further migration of con
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-09
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32. Socioenvironmental conditions and intestinal parasitic infections in Brazilian urban slums: a cross-sectional study
ABSTRACT Intestinal parasitic infections (IPIs) are neglected diseases with limited data regarding prevalence in Brazil and many other countries. In increasingly urban societies, investigating the profile and socioenvironmental determinants of IPIs in the general population of slum dwellers is necessary for establishing appropriate public policies catered to
Rev. Inst. Med. trop. S. Paulo. Publicado em: 07/08/2017
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33. GEOCHEMICAL BACKGROUND IN AN OXISOL
ABSTRACT Geochemical background establishment is indispensable to determine the actual state of contamination of soils and sediments. However, no scientific consensus exists regarding the methodology for determining these values. In this context, this study aimed to establish the geochemical background in an Oxisol (Rhodic Hapludox) by means of an integrated
Eng. Agríc.. Publicado em: 2017-06
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34. Agronomic and environmental implications of using a By-Product of the Intermediate Tanning Processes as Nitrogen Fertilizer
ABSTRACT Nitrogen (N) is an important nutrient for agriculture, and Brazil is heavily dependent on N imports. A by-product of the intermediate processes of tanning (BPIPT) may be used as an N fertilizer which will reduce this dependency, but its chromium (Cr) content is a matter of concern. This work assessed Cr (III, VI) and N (total, inorganic) contents in
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-06
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35. Richness and density of aquatic benthic macroinvertebrates after exposure to fungicides and insecticides in rice paddy fields
ABSTRACT The objective of this study was to verify the richness and density of aquatic benthic macroinvertebrates after exposure to fungicides and insecticides of the rice paddy fields. In the crop seasons of 2012/13 and 2013/14, field experiments were performed, which consisted of single-dose applications of the fungicides trifloxystrobin + tebuconazole and
An. Acad. Bras. Ciênc.. Publicado em: 02/03/2017
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36. Phosphorus fractions in soil with a long history of organic waste and mineral fertilizer addition
ABSTRACT Applications for long periods of organic animal waste as a source of nutrients to crops can contaminate the soil and the surface and subsurface waters. This study aimed to evaluate how the utilization of organic waste, after successive applications, affects P fractions in the soil and consequently environmental contamination. In an experiment conduc
Bragantia. Publicado em: 30/01/2017