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Early refrigerators could only be opened from the outside, making accidental entrapment a possibility, particularly of children playing with discarded appliances; many such deaths have been recorded. [ 1 ] [ 2 ] Modern designs have a magnetic closure that can be opened by pushing from the inside.
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 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).
It's a good idea to clean out your refrigerator and take a closer look at what exactly you're stocking up on. You may find that some items you don't normally think twice about may actually be ...
Gas stoves also affect children. A 2023 study also linked gas stoves with nearly 13% of childhood asthma cases, while a meta-analysis of 41 scientific papers found that owning a gas stove could ...
According to the America's Poison Control Center's National Poison Data System annual report, there were 4,800 single-substance exposures to chlorine gas (defined as mixing a household acid ...
The meal was placed in a locked refrigerator overnight. [3] In the morning the Richardsons left to work at the orange groves 16 miles away. [3] A neighbor, Bessie Reece, was delegated to take care of the children while their parents were at work. [3] The oldest four were enrolled in school; [7] they went home to eat lunch.
By 1930, General Motors and Du Pont formed the Kinetic Chemical Company to produce Freon, and by 1935, over 8 million refrigerators utilizing R-12 were sold by Frigidaire and its competitors. In 1932, Carrier began using R-11 in the worlds first self-contained home air conditioning unit known as the "atmospheric cabinet". As a result of CFCs ...