症屁言之凿凿,氯乙烯一烧就完,除了吸点光气,顺便下个盐酸雨,两天后又可以呼吸甜美空气了。
结果这个水货化学系教授,就是不相信民主自由,非搞科学辩经,应该是我鳖特务。
Officials warned the controlled burn would send phosgene and hydrogen chloride into the air. Phosgene is a highly toxic, colorless gas with a strong odor that can cause vomiting and breathing trouble and was used as a weapon in World War I.
Phosgene is considered safe at 0.1 parts per million during an eight-hour exposure, or 0.2 ppm for a 15-minute exposure. The eight-hour exposure threshold would have to be even lower when measuring inside people’s homes, where residents often spend more than eight consecutive hours.
Hydrogen chloride is a colorless to yellowish gas with a strong odor and its primarily effect on humans is skin, eye, nose and throat irritation. It is considered safe at 5 ppm for an eight-hour exposure.
Neil Donahue, a professor chemistry at Carnegie Mellon University in nearby Pittsburgh, said he worries that the burning could have formed dioxins, which are created from burning chlorinated carbon materials.
“Vinyl chloride is bad, dioxins are worse as carcinogens and that comes from burning,” Donahue said.
Dioxins are a group of persistent environmental pollutants that last in the ground and body for years and have been one of the major environmental problems and controversies in the United States.
完了,我帝教授素质堪忧
版主: Softfist
Re: 完了,我帝教授素质堪忧
CMU离这么近,又有一堆搞研究的内行,网站上一点消息没有。也许不放在心上?
sdehc 写了: 2023年 2月 14日 02:16 症屁言之凿凿,氯乙烯一烧就完,除了吸点光气,顺便下个盐酸雨,两天后又可以呼吸甜美空气了。
结果这个水货化学系教授,就是不相信民主自由,非搞科学辩经,应该是我鳖特务。
Officials warned the controlled burn would send phosgene and hydrogen chloride into the air. Phosgene is a highly toxic, colorless gas with a strong odor that can cause vomiting and breathing trouble and was used as a weapon in World War I.
Phosgene is considered safe at 0.1 parts per million during an eight-hour exposure, or 0.2 ppm for a 15-minute exposure. The eight-hour exposure threshold would have to be even lower when measuring inside people’s homes, where residents often spend more than eight consecutive hours.
Hydrogen chloride is a colorless to yellowish gas with a strong odor and its primarily effect on humans is skin, eye, nose and throat irritation. It is considered safe at 5 ppm for an eight-hour exposure.
Neil Donahue, a professor chemistry at Carnegie Mellon University in nearby Pittsburgh, said he worries that the burning could have formed dioxins, which are created from burning chlorinated carbon materials.
“Vinyl chloride is bad, dioxins are worse as carcinogens and that comes from burning,” Donahue said.
Dioxins are a group of persistent environmental pollutants that last in the ground and body for years and have been one of the major environmental problems and controversies in the United States.
Re: 完了,我帝教授素质堪忧
LOLsdehc 写了: 2023年 2月 14日 02:16 症屁言之凿凿,氯乙烯一烧就完,除了吸点光气,顺便下个盐酸雨,两天后又可以呼吸甜美空气了。
结果这个水货化学系教授,就是不相信民主自由,非搞科学辩经,应该是我鳖特务。
Officials warned the controlled burn would send phosgene and hydrogen chloride into the air. Phosgene is a highly toxic, colorless gas with a strong odor that can cause vomiting and breathing trouble and was used as a weapon in World War I.
Phosgene is considered safe at 0.1 parts per million during an eight-hour exposure, or 0.2 ppm for a 15-minute exposure. The eight-hour exposure threshold would have to be even lower when measuring inside people’s homes, where residents often spend more than eight consecutive hours.
Hydrogen chloride is a colorless to yellowish gas with a strong odor and its primarily effect on humans is skin, eye, nose and throat irritation. It is considered safe at 5 ppm for an eight-hour exposure.
Neil Donahue, a professor chemistry at Carnegie Mellon University in nearby Pittsburgh, said he worries that the burning could have formed dioxins, which are created from burning chlorinated carbon materials.
“Vinyl chloride is bad, dioxins are worse as carcinogens and that comes from burning,” Donahue said.
Dioxins are a group of persistent environmental pollutants that last in the ground and body for years and have been one of the major environmental problems and controversies in the United States.
你帝,我帝,他帝,谁的帝?
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Re: 完了,我帝教授素质堪忧
老逼将是站美帝教授,还是站美国联邦?
理解了老将是代入狗的视角之后,你就理解了老将
viewtopic.php?t=120513
理解了它们是代入狗的视角之后,它们为什么会嘲笑不愿意当狗的人,以及为什么会害怕想要反抗的人,就都可以理解了:
“放着好好的狗不当”
