Suchergebnisse

ISBN 978-85-7270-076-4 ; National audience ; The complexity of the assessment process of variations in contamination levels of soils is in part due to distinct sources, natural or by some anthropic activities. Compare these different substances sources, backgrounds and guiding values is very important to introduce directions and contributions for regulations or environmental protection legislation in general, for heavy metals contents, among other chemical components, and are pointing to more restrictive use of phosphate fertilisers, rich in those pollutant elements, in many countries around the world. Recognize and characterize contaminated soils is a serious concern with issues that whole society have to deal with today and one of the largest and most neglected problems in Brazil. This works intends to obtain an insight in the natural sources and loads of heavy metals, especially cadmium to soils in Brazil, mainly with the application of huge volume of mineral fertilisers, directly linked with their dangerous concentrations. This is a threat to public health in many regions, and it is one of the priorities to protect it from all sources of anomalous concentration in the ground. Decreasing soil quality by means of contamination and pollution by heavy metals is now recognized also as a serious risk for environmental quality and to the health of people. ; A complexidade do processo de avaliação da variação dos níveis de contaminação do solo é, em parte, devido à imprecisão na caracterização de sua origem distinta, natural ou resultante de atividades antrópicas. O estabelecimento e a comparação de backgrounds e valores de referência do conteúdo destes contaminantes são importantes para nortear e contribuir na regulamentação e jurisprudência de cunho protetivo ambiental em geral. Algumas ações visando o controle de metais pesados, entre outros elementos químicos, apontam para um uso mais restritivo de fertilizantes fosfatados, ricos nestes elementos, em vários países. Reconhecer e caracterizar solos contaminados são uma séria preocupação com problemas que toda sociedade tem de lidar hoje em dia e é um dos maiores e mais negligenciados problemas no Brasil. Neste trabalho pretende-se fazer um balanço de fontes naturais de metais pesados e cargas adicionais destes contaminantes, em especial o Cádmio, em solos brasileiros, principalmente através da aplicação de fertilizantes minerais, aplicados em grande volume e responsáveis pelo significativo incremento de sua concentração. Isto é uma ameaça à saúde pública em várias regiões, e é uma das prioridades na proteção e prevenção de suas fontes de concentração anômala no solo. A degradação da qualidade do solo concernente à contaminação e poluição por metais pesados é, hoje, reconhecido também como um sério risco ambiental e à saúde.

ISBN 978-85-7270-076-4 ; National audience ; The complexity of the assessment process of variations in contamination levels of soils is in part due to distinct sources, natural or by some anthropic activities. Compare these different substances sources, backgrounds and guiding values is very important to introduce directions and contributions for regulations or environmental protection legislation in general, for heavy metals contents, among other chemical components, and are pointing to more restrictive use of phosphate fertilisers, rich in those pollutant elements, in many countries around the world. Recognize and characterize contaminated soils is a serious concern with issues that whole society have to deal with today and one of the largest and most neglected problems in Brazil. This works intends to obtain an insight in the natural sources and loads of heavy metals, especially cadmium to soils in Brazil, mainly with the application of huge volume of mineral fertilisers, directly linked with their dangerous concentrations. This is a threat to public health in many regions, and it is one of the priorities to protect it from all sources of anomalous concentration in the ground. Decreasing soil quality by means of contamination and pollution by heavy metals is now recognized also as a serious risk for environmental quality and to the health of people. ; A complexidade do processo de avaliação da variação dos níveis de contaminação do solo é, em parte, devido à imprecisão na caracterização de sua origem distinta, natural ou resultante de atividades antrópicas. O estabelecimento e a comparação de backgrounds e valores de referência do conteúdo destes contaminantes são importantes para nortear e contribuir na regulamentação e jurisprudência de cunho protetivo ambiental em geral. Algumas ações visando o controle de metais pesados, entre outros elementos químicos, apontam para um uso mais restritivo de fertilizantes fosfatados, ricos nestes elementos, em vários países. Reconhecer e caracterizar solos contaminados são uma séria preocupação com problemas que toda sociedade tem de lidar hoje em dia e é um dos maiores e mais negligenciados problemas no Brasil. Neste trabalho pretende-se fazer um balanço de fontes naturais de metais pesados e cargas adicionais destes contaminantes, em especial o Cádmio, em solos brasileiros, principalmente através da aplicação de fertilizantes minerais, aplicados em grande volume e responsáveis pelo significativo incremento de sua concentração. Isto é uma ameaça à saúde pública em várias regiões, e é uma das prioridades na proteção e prevenção de suas fontes de concentração anômala no solo. A degradação da qualidade do solo concernente à contaminação e poluição por metais pesados é, hoje, reconhecido também como um sério risco ambiental e à saúde.

ISBN 978-85-7270-076-4 ; National audience ; The complexity of the assessment process of variations in contamination levels of soils is in part due to distinct sources, natural or by some anthropic activities. Compare these different substances sources, backgrounds and guiding values is very important to introduce directions and contributions for regulations or environmental protection legislation in general, for heavy metals contents, among other chemical components, and are pointing to more restrictive use of phosphate fertilisers, rich in those pollutant elements, in many countries around the world. Recognize and characterize contaminated soils is a serious concern with issues that whole society have to deal with today and one of the largest and most neglected problems in Brazil. This works intends to obtain an insight in the natural sources and loads of heavy metals, especially cadmium to soils in Brazil, mainly with the application of huge volume of mineral fertilisers, directly linked with their dangerous concentrations. This is a threat to public health in many regions, and it is one of the priorities to protect it from all sources of anomalous concentration in the ground. Decreasing soil quality by means of contamination and pollution by heavy metals is now recognized also as a serious risk for environmental quality and to the health of people. ; A complexidade do processo de avaliação da variação dos níveis de contaminação do solo é, em parte, devido à imprecisão na caracterização de sua origem distinta, natural ou resultante de atividades antrópicas. O estabelecimento e a comparação de backgrounds e valores de referência do conteúdo destes contaminantes são importantes para nortear e contribuir na regulamentação e jurisprudência de cunho protetivo ambiental em geral. Algumas ações visando o controle de metais pesados, entre outros elementos químicos, apontam para um uso mais restritivo de fertilizantes fosfatados, ricos nestes elementos, em vários países. Reconhecer e caracterizar solos contaminados são uma séria preocupação com problemas que toda sociedade tem de lidar hoje em dia e é um dos maiores e mais negligenciados problemas no Brasil. Neste trabalho pretende-se fazer um balanço de fontes naturais de metais pesados e cargas adicionais destes contaminantes, em especial o Cádmio, em solos brasileiros, principalmente através da aplicação de fertilizantes minerais, aplicados em grande volume e responsáveis pelo significativo incremento de sua concentração. Isto é uma ameaça à saúde pública em várias regiões, e é uma das prioridades na proteção e prevenção de suas fontes de concentração anômala no solo. A degradação da qualidade do solo concernente à contaminação e poluição por metais pesados é, hoje, reconhecido também como um sério risco ambiental e à saúde.

ISBN 978-85-7270-076-4 ; National audience ; The complexity of the assessment process of variations in contamination levels of soils is in part due to distinct sources, natural or by some anthropic activities. Compare these different substances sources, backgrounds and guiding values is very important to introduce directions and contributions for regulations or environmental protection legislation in general, for heavy metals contents, among other chemical components, and are pointing to more restrictive use of phosphate fertilisers, rich in those pollutant elements, in many countries around the world. Recognize and characterize contaminated soils is a serious concern with issues that whole society have to deal with today and one of the largest and most neglected problems in Brazil. This works intends to obtain an insight in the natural sources and loads of heavy metals, especially cadmium to soils in Brazil, mainly with the application of huge volume of mineral fertilisers, directly linked with their dangerous concentrations. This is a threat to public health in many regions, and it is one of the priorities to protect it from all sources of anomalous concentration in the ground. Decreasing soil quality by means of contamination and pollution by heavy metals is now recognized also as a serious risk for environmental quality and to the health of people. ; A complexidade do processo de avaliação da variação dos níveis de contaminação do solo é, em parte, devido à imprecisão na caracterização de sua origem distinta, natural ou resultante de atividades antrópicas. O estabelecimento e a comparação de backgrounds e valores de referência do conteúdo destes contaminantes são importantes para nortear e contribuir na regulamentação e jurisprudência de cunho protetivo ambiental em geral. Algumas ações visando o controle de metais pesados, entre outros elementos químicos, apontam para um uso mais restritivo de fertilizantes fosfatados, ricos nestes elementos, em vários países. Reconhecer e caracterizar solos contaminados ...

ISBN 978-85-7270-076-4 ; National audience ; The complexity of the assessment process of variations in contamination levels of soils is in part due to distinct sources, natural or by some anthropic activities. Compare these different substances sources, backgrounds and guiding values is very important to introduce directions and contributions for regulations or environmental protection legislation in general, for heavy metals contents, among other chemical components, and are pointing to more restrictive use of phosphate fertilisers, rich in those pollutant elements, in many countries around the world. Recognize and characterize contaminated soils is a serious concern with issues that whole society have to deal with today and one of the largest and most neglected problems in Brazil. This works intends to obtain an insight in the natural sources and loads of heavy metals, especially cadmium to soils in Brazil, mainly with the application of huge volume of mineral fertilisers, directly linked with their dangerous concentrations. This is a threat to public health in many regions, and it is one of the priorities to protect it from all sources of anomalous concentration in the ground. Decreasing soil quality by means of contamination and pollution by heavy metals is now recognized also as a serious risk for environmental quality and to the health of people. ; A complexidade do processo de avaliação da variação dos níveis de contaminação do solo é, em parte, devido à imprecisão na caracterização de sua origem distinta, natural ou resultante de atividades antrópicas. O estabelecimento e a comparação de backgrounds e valores de referência do conteúdo destes contaminantes são importantes para nortear e contribuir na regulamentação e jurisprudência de cunho protetivo ambiental em geral. Algumas ações visando o controle de metais pesados, entre outros elementos químicos, apontam para um uso mais restritivo de fertilizantes fosfatados, ricos nestes elementos, em vários países. Reconhecer e caracterizar solos contaminados são uma séria preocupação com problemas que toda sociedade tem de lidar hoje em dia e é um dos maiores e mais negligenciados problemas no Brasil. Neste trabalho pretende-se fazer um balanço de fontes naturais de metais pesados e cargas adicionais destes contaminantes, em especial o Cádmio, em solos brasileiros, principalmente através da aplicação de fertilizantes minerais, aplicados em grande volume e responsáveis pelo significativo incremento de sua concentração. Isto é uma ameaça à saúde pública em várias regiões, e é uma das prioridades na proteção e prevenção de suas fontes de concentração anômala no solo. A degradação da qualidade do solo concernente à contaminação e poluição por metais pesados é, hoje, reconhecido também como um sério risco ambiental e à saúde.

International audience ; Quality assessment of soils requires knowledge of distinct pollutant sources and process that leads the enrichment of harmful substances, by natural or anthropogenic causes. Reference values to chemical substances contents are used to characterize polluted or contaminated areas based preliminarily on background values. A background value refers to the natural concentration of an element or a substance in soils that have not been modified by anthropogenic activities aspects impacts. The establishment and distinction of these contents from different sources, regarding their strict reference values, guides normative instructions and some environmental laws in several countries, establishing the classification of areas with distinct levels of contamination. Decreasing soil quality by means of contamination and pollution by heavy metals is nowadays recognized as a serious risk for environmental quality and to the human health. Thus, the study goal consists in a reflection about the mineral nature of soils (reference values) and anthropic input in areas under pressure from agricultural frontiers, using as a case study the Southwest region of Amazonia. The study also proposes a comparison with the current situation in Europe, in order to subsidize the elaboration of public policies for the region under pressure of agricultural use in Brazil. In southwestern region of Brazilian Legal Amazon region, the land use is facing a continuous transformation, from mining activities and wood extraction to agricultural practices with intense use of fertilizers. These practices contribute with great volumes of heavy metals added to a weak tropical soil in this frontier region, characterized by land use conflicts between areas of indigenous reserves, farmlands and illegal mining activities. This work deals with the state of the art of legislation and proposals for reference values of some harmful substances suitable to the region and a preliminary delineation of conditions and vectors that allows their expansion. In this protective sense, intergovernmental actions aiming the control of pollution by heavy metals, particularly Cadmium, among other chemical components, pointing to a more restricted use of phosphate fertilizers, rich in heavy metals, are recommended in several countries of the European community. European reference values are compared to the values practiced in Mato Grosso e Rondônia States, Brazil, as well as an analysis of several procedures to obtaining the reference values.

International audience ; Quality assessment of soils requires knowledge of distinct pollutant sources and process that leads the enrichment of harmful substances, by natural or anthropogenic causes. Reference values to chemical substances contents are used to characterize polluted or contaminated areas based preliminarily on background values. A background value refers to the natural concentration of an element or a substance in soils that have not been modified by anthropogenic activities aspects impacts. The establishment and distinction of these contents from different sources, regarding their strict reference values, guides normative instructions and some environmental laws in several countries, establishing the classification of areas with distinct levels of contamination. Decreasing soil quality by means of contamination and pollution by heavy metals is nowadays recognized as a serious risk for environmental quality and to the human health. Thus, the study goal consists in a reflection about the mineral nature of soils (reference values) and anthropic input in areas under pressure from agricultural frontiers, using as a case study the Southwest region of Amazonia. The study also proposes a comparison with the current situation in Europe, in order to subsidize the elaboration of public policies for the region under pressure of agricultural use in Brazil. In southwestern region of Brazilian Legal Amazon region, the land use is facing a continuous transformation, from mining activities and wood extraction to agricultural practices with intense use of fertilizers. These practices contribute with great volumes of heavy metals added to a weak tropical soil in this frontier region, characterized by land use conflicts between areas of indigenous reserves, farmlands and illegal mining activities. This work deals with the state of the art of legislation and proposals for reference values of some harmful substances suitable to the region and a preliminary delineation of conditions and vectors that allows their expansion. In this protective sense, intergovernmental actions aiming the control of pollution by heavy metals, particularly Cadmium, among other chemical components, pointing to a more restricted use of phosphate fertilizers, rich in heavy metals, are recommended in several countries of the European community. European reference values are compared to the values practiced in Mato Grosso e Rondônia States, Brazil, as well as an analysis of several procedures to obtaining the reference values.

International audience ; Quality assessment of soils requires knowledge of distinct pollutant sources and process that leads the enrichment of harmful substances, by natural or anthropogenic causes. Reference values to chemical substances contents are used to characterize polluted or contaminated areas based preliminarily on background values. A background value refers to the natural concentration of an element or a substance in soils that have not been modified by anthropogenic activities aspects impacts. The establishment and distinction of these contents from different sources, regarding their strict reference values, guides normative instructions and some environmental laws in several countries, establishing the classification of areas with distinct levels of contamination. Decreasing soil quality by means of contamination and pollution by heavy metals is nowadays recognized as a serious risk for environmental quality and to the human health. Thus, the study goal consists in a reflection about the mineral nature of soils (reference values) and anthropic input in areas under pressure from agricultural frontiers, using as a case study the Southwest region of Amazonia. The study also proposes a comparison with the current situation in Europe, in order to subsidize the elaboration of public policies for the region under pressure of agricultural use in Brazil. In southwestern region of Brazilian Legal Amazon region, the land use is facing a continuous transformation, from mining activities and wood extraction to agricultural practices with intense use of fertilizers. These practices contribute with great volumes of heavy metals added to a weak tropical soil in this frontier region, characterized by land use conflicts between areas of indigenous reserves, farmlands and illegal mining activities. This work deals with the state of the art of legislation and proposals for reference values of some harmful substances suitable to the region and a preliminary delineation of conditions and vectors that allows their ...

International audience ; Quality assessment of soils requires knowledge of distinct pollutant sources and process that leads the enrichment of harmful substances, by natural or anthropogenic causes. Reference values to chemical substances contents are used to characterize polluted or contaminated areas based preliminarily on background values. A background value refers to the natural concentration of an element or a substance in soils that have not been modified by anthropogenic activities aspects impacts. The establishment and distinction of these contents from different sources, regarding their strict reference values, guides normative instructions and some environmental laws in several countries, establishing the classification of areas with distinct levels of contamination. Decreasing soil quality by means of contamination and pollution by heavy metals is nowadays recognized as a serious risk for environmental quality and to the human health. Thus, the study goal consists in a reflection about the mineral nature of soils (reference values) and anthropic input in areas under pressure from agricultural frontiers, using as a case study the Southwest region of Amazonia. The study also proposes a comparison with the current situation in Europe, in order to subsidize the elaboration of public policies for the region under pressure of agricultural use in Brazil. In southwestern region of Brazilian Legal Amazon region, the land use is facing a continuous transformation, from mining activities and wood extraction to agricultural practices with intense use of fertilizers. These practices contribute with great volumes of heavy metals added to a weak tropical soil in this frontier region, characterized by land use conflicts between areas of indigenous reserves, farmlands and illegal mining activities. This work deals with the state of the art of legislation and proposals for reference values of some harmful substances suitable to the region and a preliminary delineation of conditions and vectors that allows their expansion. In this protective sense, intergovernmental actions aiming the control of pollution by heavy metals, particularly Cadmium, among other chemical components, pointing to a more restricted use of phosphate fertilizers, rich in heavy metals, are recommended in several countries of the European community. European reference values are compared to the values practiced in Mato Grosso e Rondônia States, Brazil, as well as an analysis of several procedures to obtaining the reference values.

International audience ; Quality assessment of soils requires knowledge of distinct pollutant sources and process that leads the enrichment of harmful substances, by natural or anthropogenic causes. Reference values to chemical substances contents are used to characterize polluted or contaminated areas based preliminarily on background values. A background value refers to the natural concentration of an element or a substance in soils that have not been modified by anthropogenic activities aspects impacts. The establishment and distinction of these contents from different sources, regarding their strict reference values, guides normative instructions and some environmental laws in several countries, establishing the classification of areas with distinct levels of contamination. Decreasing soil quality by means of contamination and pollution by heavy metals is nowadays recognized as a serious risk for environmental quality and to the human health. Thus, the study goal consists in a reflection about the mineral nature of soils (reference values) and anthropic input in areas under pressure from agricultural frontiers, using as a case study the Southwest region of Amazonia. The study also proposes a comparison with the current situation in Europe, in order to subsidize the elaboration of public policies for the region under pressure of agricultural use in Brazil. In southwestern region of Brazilian Legal Amazon region, the land use is facing a continuous transformation, from mining activities and wood extraction to agricultural practices with intense use of fertilizers. These practices contribute with great volumes of heavy metals added to a weak tropical soil in this frontier region, characterized by land use conflicts between areas of indigenous reserves, farmlands and illegal mining activities. This work deals with the state of the art of legislation and proposals for reference values of some harmful substances suitable to the region and a preliminary delineation of conditions and vectors that allows their expansion. In this protective sense, intergovernmental actions aiming the control of pollution by heavy metals, particularly Cadmium, among other chemical components, pointing to a more restricted use of phosphate fertilizers, rich in heavy metals, are recommended in several countries of the European community. European reference values are compared to the values practiced in Mato Grosso e Rondônia States, Brazil, as well as an analysis of several procedures to obtaining the reference values.

International audience ; Quality assessment of soils requires knowledge of distinct pollutant sources and process that leads the enrichment of harmful substances, by natural or anthropogenic causes. Reference values to chemical substances contents are used to characterize polluted or contaminated areas based preliminarily on background values. A background value refers to the natural concentration of an element or a substance in soils that have not been modified by anthropogenic activities aspects impacts. The establishment and distinction of these contents from different sources, regarding their strict reference values, guides normative instructions and some environmental laws in several countries, establishing the classification of areas with distinct levels of contamination. Decreasing soil quality by means of contamination and pollution by heavy metals is nowadays recognized as a serious risk for environmental quality and to the human health. Thus, the study goal consists in a reflection about the mineral nature of soils (reference values) and anthropic input in areas under pressure from agricultural frontiers, using as a case study the Southwest region of Amazonia. The study also proposes a comparison with the current situation in Europe, in order to subsidize the elaboration of public policies for the region under pressure of agricultural use in Brazil. In southwestern region of Brazilian Legal Amazon region, the land use is facing a continuous transformation, from mining activities and wood extraction to agricultural practices with intense use of fertilizers. These practices contribute with great volumes of heavy metals added to a weak tropical soil in this frontier region, characterized by land use conflicts between areas of indigenous reserves, farmlands and illegal mining activities. This work deals with the state of the art of legislation and proposals for reference values of some harmful substances suitable to the region and a preliminary delineation of conditions and vectors that allows their expansion. In this protective sense, intergovernmental actions aiming the control of pollution by heavy metals, particularly Cadmium, among other chemical components, pointing to a more restricted use of phosphate fertilizers, rich in heavy metals, are recommended in several countries of the European community. European reference values are compared to the values practiced in Mato Grosso e Rondônia States, Brazil, as well as an analysis of several procedures to obtaining the reference values.