Khí gây cười là hiểm họa của tầng ozone
ác nhà khoa học Mỹ khẳng định khí gây cười đã trở thành mối họa lớn nhất đối với tầng ozone của trái đất. Nitơ oxit (N2O) là chất khí gây mê, giảm đau không màu có vị ngọt nhẹ và nặng hơn không khí 1,5 lần. Nó được tạo ra từ phân động vật, quá trình xử lý rác thải, phân bón hóa học, động cơ đốt trong và các ngành công nghiệp. N2O không cháy nhưng có tính oxy hóa và kích thích phản ứng cháy. Khí này không duy trì sự sống và có thể gây ngạt.
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