Household dust metal levels in the Sao Paulo metropolitan area
Carregando...
Data
Data de publicação:
2007
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th
Exportar
Resumo
A study about household dust is being conducted to determine the level of metal contamination in the São Paulo
Metropolitan Area (SPMA). The SPMA, with 18 million inhabitants, is one of the largest urban areas of the
world, with serious environmental problems, due to the great amount of industries, heavy traffic and the
disordered growth of population. The pollutants originate from a multiplicity of indoor and outdoor sources.
Indoor sources are originated from residual (hair, skin scales), pets, human activities, construction materials, and
furnishings as well as biological material (pollen, insect parts).and outdoor pollution, usually from the urban
traffic. The pollutant mixture involved in numerous physical and chemical processes and changes its
characteristics with time. Its composition and concentration depend on the strengths of indoor sources, the
concentration of pollutants outside and the properties of ventilation and air-conditioning systems. It is well
recognized that many metals have chronic effects on humans, in particular toddlers, who are at an higher risk
compared to adults because they engage in greater hand to-mouth activity and their neurological systems are still
developing. The household dust samples were collected from different localities, using vacuum cleaner, and
sieved up to particle size <63μm, which were then analyzed for 7 elements by X-ray fluorescence technique. The
fundamental parameters method (FP) was applied and the simple pressed powder technique for sample
preparation was used. The concentrations preliminary results of metals in the household dust were Cr, 18-188 μg
g-1; Mn, 119-369 μg g-1; Fe, 372-1464 μg g-1; Ni, 33-85 μg g-1; Cu, 42-303 μg g-1; Zn, 156-1369 μg g-1 and Pb,
26-160 μg g-1.
Como referenciar
SCAPIN, MARCOS A.; SCAPIN, VALDIRENE O.; SATO, IVONE M. Household dust metal levels in the Sao Paulo metropolitan area. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th, Sept. 30 - Oct. 5, 2007, Santos, SP. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/18112. Acesso em: 19 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.