General discussion: Trends in emissions concentrations.
General discussion: Trends in emissions concentrations.
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一般性讨论:排放浓度趋势。
DOI:
10.1039/d1fd90013g
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发表时间:
2021
影响因子:
3.4
通讯作者:
Altuwayjiri AH
中科院分区:
文献类型:
--
作者:
Altuwayjiri AH
Christian Pfrang opened discussion of the introductory lecture by Luisa Molina by communicating: Many thanks for your excellent introductory lecture (DOI: 10.1039/d0fd00123f). I am particularly interested in the challenges associated with residential cooking emissions. You commented on the emissions associated with traditional wood-burning cookstoves. What are the best alternatives for these traditional cookstoves in the developing world (if electricity is not available or not affordable) and is there a danger of replacing traditional cookstoves/open res that are mostly used outdoors by less emitting, but indoor cookstoves potentially having a detrimental impact on indoor air quality if ventilation is insufficient?Luisa Molina communicated in reply: Thank you very much for your kind message. Regarding the challenges associated with residential cooking emissions, while in developed cities and some developing cities, open res are used occasionally for outdoor cooking, this is not the case in most of the developing cities, where many are still using open res or inefficient biomass-burning stoves for daily cooking in poorly ventilated households, exposing the residents to toxic pollutants. In addition to cooking, open- res also serve other functions, such as heating water for drinking or bathing and providing space heating. In areas where electricity or natural gas is not available, some government agencies have introduced the use of alternative cleaner fuels such as lique ed petroleum gas (LPG) by providing subsidies to families. The use of LPG stoves has increased considerably in many large urban areas. On the other hand, it is important to make sure that it is properly installed and maintained. For example, as shown in studies conducted in Mexico City, leakage from LPG canisters used for residential and commercial cooking and water heating, as well as the supply network, is a large source of VOCs and other co-pollutants. In some regions that have access to fuel-wood, when there is not enough money for LPG, the families are forced to resort back to using fuel-wood. The number of