论文部分内容阅读
空气中的二氧化碳含量一般为0.03%~0.1%.当二氧化碳含量增加到1.75%时,人们的呼吸就会加快、加深;换气量比原来增加1.5倍;二氧化碳含量增加到10.5%时,人的呼吸忍受就不能坚持到35秒钟以上;二氧化碳含量增加到30%左右,人的呼吸就会受到抑制,以至于麻木致死。对于氧气来说,当在空气中的含量下降到12%,人的呼吸明显加快;含氧量下降到6%时,人就会出现神智模糊的症状;如果人从新鲜空气环境里,突然进入氧气只有4%以下的环境里,40秒内就失去知觉,随之停止呼吸。而沼气池内,只有沼气,没有氧气,二氧化碳含量又占沼气的35%左右。所以这种情况下,很自然使人窒息中毒。
The carbon dioxide content in the air is generally 0.03% ~ 0.1% .When the carbon dioxide content increased to 1.75%, people’s breathing will speed up and deepen; ventilation increased 1.5 times than the original; carbon dioxide content increased to 10.5%, the human Respiratory endurance can not adhere to more than 35 seconds; carbon dioxide levels increased to 30% or so, people’s breathing will be suppressed, so numb death. For oxygen, when the content in the air drops to 12%, people’s breathing significantly accelerated; oxygen content decreased to 6%, people will appear vague symptoms; if people from the fresh air environment, suddenly entered Oxygen is less than 4% of the environment, 40 seconds unconscious, followed by stop breathing. The biogas digesters, only biogas, no oxygen, carbon dioxide accounted for about 35% of biogas. So in this case, it is natural suffocation poisoning.