Department of Medicine, University of Washington, Seattle, Washington, United States of America.
PATH, Dakar, Senegal.
PLoS One. 2018 Nov 20;13(11):e0206822. doi: 10.1371/journal.pone.0206822. eCollection 2018.
Nearly half the world's population burns solid fuel for cooking, heating, and lighting. The incomplete combustion of these fuels is associated with detrimental health and environmental effects. The design and distribution of improved cookstoves that increase combustion efficiency and reduce indoor air pollution are a global priority. However, promoting exclusive and sustainable use of the improved stoves has proved challenging. In 2012, we conducted a survey in a community in rural Senegal to describe stove ownership and preferences for different stove technologies. This report aims to describe local stove and fuel use, to identify household preferences related to stove features and function, and to elicit the community perceptions of cleaner-burning stove alternatives with a focus on liquid propane gas. Similar to many resource-limited settings, biomass fuel use was ubiquitous and multiple stoves were used, even when cleaner burning alternatives were available; less than 1% of households that owned a liquid propane stove used it as the primary cooking device. Despite nearly universal use of the traditional open fire (92% of households), women did not prefer this stove when presented with other options. Propane gas, solar, and improved cookstoves were all viewed as more desirable when compared to the traditional open fire, however first-hand experience and knowledge of these stoves was limited. The stove features of greatest value were, in order: large cooking capacity, minimal smoke production, and rapid heating. Despite the low desirability and smoke emisions from the traditional open fire, its pervasive use, even in the presence of alternative stove options, may be related to its ability to satisfy the practical needs of the surveyed cooks, namely large cooking capacity and rapid, intense heat generation. Our data suggest women in this community want alternative stove options that reduce smoke exposure, however currently available stoves, including liquid propane gas, do not address all of the cooks' preferences.
世界上近一半的人口用固体燃料做饭、取暖和照明。这些燃料的不完全燃烧与有害的健康和环境影响有关。设计和分发提高燃烧效率和减少室内空气污染的改良炉灶是全球的优先事项。然而,推广改良炉灶的独家和可持续使用被证明是具有挑战性的。2012 年,我们在塞内加尔农村的一个社区进行了一项调查,以描述炉灶的拥有情况和对不同炉灶技术的偏好。本报告旨在描述当地的炉灶和燃料使用情况,确定与炉灶功能和特点相关的家庭偏好,并了解社区对燃烧更清洁的炉灶替代品的看法,重点是液化石油气。与许多资源有限的环境类似,生物质燃料的使用无处不在,即使有更清洁的燃烧替代品,也会使用多台炉灶;拥有液化石油气炉的家庭中,不到 1%将其用作主要烹饪设备。尽管传统明火(92%的家庭)的使用非常普遍,但当有其他选择时,妇女并不喜欢这种炉灶。与传统明火相比,丙烷气、太阳能和改良炉灶都被认为更理想,然而,人们对这些炉灶的第一手经验和了解有限。最有价值的炉灶特点依次为:大容量烹饪、最小烟雾产生和快速加热。尽管传统明火的需求量低,烟雾排放大,但即使存在替代炉灶选择,它的普遍使用可能与其能够满足被调查厨师的实际需求有关,即大容量烹饪和快速、强烈的热量产生。我们的数据表明,这个社区的妇女希望有替代炉灶选择,以减少烟雾暴露,然而,目前可用的炉灶,包括液化石油气,并没有满足所有厨师的偏好。