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In-kitchen aerosol exposure in twelve cities across the globe

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Kumar, Prashant ; Hama, Sarkawt ; Abbass, Rana Alaa ; Nogueira, Thiago ; Brand, Veronika S. ; Wu, Huai-Wen ; Abulude, Francis Olawale ; Adelodun, Adedeji A. ; Anand, Partibha ; Andrade, Maria de Fatima ; Apondo, William ; Asfaw, Araya ; Aziz, Kosar Hama ; Cao, Shi-Jie ; El-Gendy, Ahmed ; Indu, Gopika ; Kehbila, Anderson Gwanyebit ; Ketzel, Matthias ; Khare, Mukesh ; Kota, Sri Harsha ; Mamo, Tesfaye ; Manyozo, Steve ; Martinez, Jenny ; McNabola, Aonghus ; Morawska, Lidia ; Mustafa, Fryad ; Muula, Adamson S. ; Nahian, Samiha ; Nardocci, Adelaide Cassia ; Nelson, William ; Ngowi, Aiwerasia, V ; Njoroge, George ; Olaya, Yris ; Omer, Khalid ; Osano, Philip ; Pavel, Md Riad Sarkar ; Salam, Abdus ; Santos, Erik Luan Costa ; Sitati, Cynthia ; Nagendra, S. M. Shiva
Número total de Autores: 40
Tipo de documento: Artigo Científico
Fonte: Environment International; v. 162, p. 27-pg., 2022-03-09.
Resumo

Poor ventilation and polluting cooking fuels in low-income homes cause high exposure, yet relevant global studies are limited. We assessed exposure to in-kitchen particulate matter (PM2.5 and PM10) employing similar instrumentation in 60 low-income homes across 12 cities: Dhaka (Bangladesh); Chennai (India); Nanjing (China); Medellin (Colombia); Sao Paulo (Brazil); Cairo (Egypt); Sulaymaniyah (Iraq); Addis Ababa (Ethiopia); Akure (Nigeria); Blantyre (Malawi); Dar-es-Salaam (Tanzania) and Nairobi (Kenya). Exposure profiles of kitchen occupants showed that fuel, kitchen volume, cooking type and ventilation were the most prominent factors affecting in-kitchen exposure. Different cuisines resulted in varying cooking durations and disproportional exposures. Occupants in Dhaka, Nanjing, Dar-es-Salaam and Nairobi spent > 40% of their cooking time frying (the highest particle emitting cooking activity) compared with similar to 68% of time spent boiling/stewing in Cairo, Sulaymaniyah and Akure. The highest average PM2.5 (PM10) concentrations were in Dhaka 185 +/- 48 (220 +/- 58) mu g m(-3) owing to small kitchen volume, extensive frying and prolonged cooking compared with the lowest in Medellin 10 +/- 3 (14 +/- 2) mu g m(-3). Dual ventilation (mechanical and natural) in Chennai, Cairo and Sulaymaniyah reduced average in-kitchen PM2.5 and PM10 by 2.3- and 1.8-times compared with natural ventilation (open doors) in Addis Ababa, Dar-es-Salam and Nairobi. Using charcoal during cooking (Addis Ababa, Blantyre and Nairobi) increased PM2.5 levels by 1.3- and 3.1-times compared with using natural gas (Nanjing, Medellin and Cairo) and LPG (Chennai, Sao Paulo and Sulaymaniyah), respectively. Smaller-volume kitchens (<15 m(3); Dhaka and Nanjing) increased cooking exposure compared with their larger-volume counterparts (Medellin, Cairo and Sulaymaniyah). Potential exposure doses were highest for Asian, followed by African, Middle-eastern and South American homes. We recommend increased cooking exhaust extraction, cleaner fuels, awareness on improved cooking practices and minimising passive occupancy in kitchens to mitigate harmful cooking emissions. (AU)

Processo FAPESP: 16/18438-0 - Área Metropolitana de São Paulo: abordagem integrada mudanças climáticas e qualidade do ar, METROCLIMA MASP
Beneficiário:Maria de Fátima Andrade
Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
Processo FAPESP: 20/08505-8 - Impacto das emissões de poluentes veiculares na população usuária de diferentes modais de transporte na cidade de São Paulo
Beneficiário:Veronika Sassen Brand
Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
Processo FAPESP: 16/14501-0 - Impacto das emissões de poluentes veiculares na população usuária de diferentes modais de transporte na cidade de São Paulo
Beneficiário:Veronika Sassen Brand
Modalidade de apoio: Bolsas no Brasil - Doutorado Direto