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After the children climbed inside, the lid fell and the hasp engaged, which prevented them from getting out. [18] [19] [20] 2019: Two brothers in Kyrgyzstan – ages 4 and 6 – died while playing hide and seek, when they became trapped in an abandoned refrigerator that had been built with an "automatic locking system.... The type of fridge was ...
The first air conditioners and refrigerators employed toxic or flammable gases, such as ammonia, sulfur dioxide, methyl chloride, or propane, that could result in fatal accidents when they leaked. [4] In 1928 Thomas Midgley Jr. created the first non-flammable, non-toxic chlorofluorocarbon gas, Freon (R-12).
That’s because women tend to use gas stoves and cleaning products more often, Dr. Mary Margaret Johnson, principal research scientist in the Department of Environmental Health at Harvard T.H ...
Infection of GAS may spread through direct contact with mucus or sores on the skin. [2] GAS infections can cause over 500,000 deaths per year. [4] Despite the emergence of antibiotics as a treatment for group A streptococcus, cases of iGAS are an increasing problem, particularly on the continent of Africa. [5]
Highly Toxic: a gas that has a LC 50 in air of 200 ppm or less. [2] NFPA 704: Materials that, under emergency conditions, can cause serious or permanent injury are given a Health Hazard rating of 3. Their acute inhalation toxicity corresponds to those vapors or gases having LC 50 values greater than 1,000 ppm but less than or equal to 3,000 ppm ...
The chlorine gas cautionary tale garnered over 21 million views and 2.7 million likes — but more importantly, it pointed out a common household cleaning mistake that poison experts say countless ...
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Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.