Khói bếp - Sát thủ thầm lặng
Người tiếp xúc lâu ngày với khói bếp do đốt củi, rơm rạ, than đá... có thể bị các bệnh hô hấp, ung thư phổi, mù mắt. Trên thế giới, ô nhiễm do khói bếp là vấn đề sức khoẻ chỉ xếp sau suy dinh dưỡng, AIDS, hút thuốc lá và ô nhiễm nước.
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