Use of Temperature Sensors to Determine Exclusivity of Improved Stove Use and Associated Household Air Pollution Reductions in Kenya

作者：Lozier Matthew J^*; Sircar Kanta; Christensen Bryan; Pillarisetti Ajay; Pennise David; Bruce Nigel; Stanistreet Debbi; Naeher Luke; Pilishvili Tamara; Farrar Jennifer Loo; Sage Michael; Nyagol Ronald; Muoki Justus; Wofchuck Todd; Yip Fuyuen

来源：Environmental Science & Technology, 2016, 50(8): 4564-4571.

DOI：10.1021/acs.est.5b06141

Household air pollution (HAP) contributes to 3.5-4 million annual deaths globally. Recent interventions using improved cookstoves (ICS) to reduce HAP have incorporated temperature sensors as stove use monitors (SUMs) to assess stove use. We deployed SUMs in an effectiveness study of 6 ICSs in 45 Kenyan rural homes. Stove were installed sequentially for 2 weeks and kitchen air monitoring was conducted for 48 h during each 2-week period. We placed SUMs on the ICSs and traditional cookstoves (TCS), and the continuous temperature data were analyzed using an algorithm to examine the number of cooking events, days of exclusive use of ICS, and how stove use patterns affect HAP. Stacking, defined as using both a TCS and an ICS in the same day, occurred on 40% of the study days, and exclusive use of the ICS occurred on 25% of study days. When researchers were not present, ICS use declined, which can have implications for long-term stove adoption in these communities. Continued use of TCSs was also associated with higher HAP levels. SUMs are a valuable tool for characterizing stove use and provide additional information to interpret HAP levels measured during ICS intervention studies.

• 出版日期2016-4-19