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. 2020 Oct 5;10(10):e044127. doi: 10.1136/bmjopen-2020-044127

Figure 3.

Figure 3

Trends in exclusive LPG use, any LPG use and any chulha use. The size and opacity of the points indicate the number of households monitored on each day (larger and darker points are a larger number of homes). Exclusive LPG use occurs on days when only LPG is used for cooking; any chulha use includes days with either exclusive use of the chulha or stacking of LPG and the chulha. Similarly, ‘any LPG use’ refers to days with exclusive LPG use or with stacking. LPG, liquefied petroleum gas.