Equivalent toxicity of the atmosphere for dioxins, furans and polychlorinated biphenyls, using two air sampling techniques, passive and active

• Grant number: 13/20299-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: February 01, 2014
• End date: February 28, 2017
• Field of knowledge: Engineering - Sanitary Engineering - Environmental Sanitation
• Principal Investigator: João Vicente de Assunção
• Grantee: Ana Paula Francisco
• Host Institution: Faculdade de Saúde Pública (FSP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated scholarship(s): 15/22644-2 - Assessing new POPs in air samples from São Paulo, Brazil, BE.EP.DR

Abstract

Dioxins, furans and polychlorinated biphenyls are toxic pollutants for human health including risks of cancer incidence , neurodevelopmental effects, dermal lesions, chloracne. These compounds are persistent organic pollutants that can be transported to long distances from the emission source and they are bioaccumulated in ecosystems. Objective: To determine the equivalent toxicity of the atmosphere of the city of São Paulo due to the measurement of dioxins, furans and polychlorinated biphenyls (dl-PCBs) in the air. Method: Exposure of passive collectors of toxic pollutants in urban, industrial and background areas in São Paulo associated with active collectors, with an exposure time of 4 months for 8 months. The samples, after collection in the field, will be subjected to pre-treatment systems using Soxhlet extraction and purification (acid silica, alumina and activated carbon columns). The analyzes will be carried out in the gas chromatograph, high-resolution (HRGC) coupled to a mass detector for high resolution (HRMS). Quantification of the 17 species most toxic of the dioxins, furans and dl-PCB 12 will be determined in terms of toxicity equivalent (TEQ), individual and total. The evaluation of these compounds found in the atmosphere may provide evidence about sources of pollution. This research will be conducted in partnership with Cetesb (Environmental Company of the State of São Paulo), where will be carried out the analyzes of the laboratory.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FRANCISCO, ANA PAULA; NARDOCCI, ADELAIDE CASSIA; TOMINAGA, MARIA YUMIKO; DA SILVA, CAMILA RODRIGUES; DE ASSUNCAO, JOAO VICENTE. Spatial and seasonal trends of polychlorinated dioxins, furans and dioxin-like polychlorinated biphenyls in air using passive and active samplers and inhalation risk assessment. ATMOSPHERIC POLLUTION RESEARCH, v. 8, n. 5, p. 979-987, SEP 2017. (14/00745-9, 13/20299-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

FRANCISCO, Ana Paula. Equivalent toxicity of the atmosphere for dioxins, furans and polychlorinated biphenyls, using two air sampling techniques, passive and active. 2017. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Saúde Pública (FSP/CIR) São Paulo.