Development and Implementation of Wireless Multigas Concentration Cloud System

Table 1

Global health risk index in environmental pollution [27].

Risk	World	Low and middle income	High income
Percentage of deaths
Indoor smoke from solid fuels	3.3	3.9	0.0
Unsafe water, sanitation, and hygiene	3.2	3.8	0.1
Urban outdoor air pollution	2.0	1.9	2.5
Global climate change	0.2	0.3	0.0
Lead exposure	0.2	0.3	0.0
All five risks	8.7	9.6	2.6
Percentage of DALYs
Indoor smoke from solid fuels	2.7	2.9	0.0
Unsafe water, sanitation, and hygiene	4.2	4.6	0.3
Urban outdoor air pollution	0.6	0.6	0.8
Global climate change	0.4	0.4	0.0
Lead exposure	0.6	0.6	0.1
All five risks	8.0	8.6	1.2