Each year about 865,000 deaths due to air pollution triggers. Air pollution is also dangerous to humans it directly affects the human respiratory system generated through many lung diseases, caused mainly from developing countries accounted for about 50% of the use of coal, firewood , straw to simmering. This is the cause of 3 million deaths annually worldwide and 4% of cases of illness. The water heating takes place in the cramped area, no exhaust system
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