If you park the car in direct sunlight at a temperature of 22 °C, in an hour the temperature inside will reach J. Null. Study of Excessive Temperatures in Enclosed Vehicles / Environmental Science 48 °C. And on a hot day, some parts of the cabin heat up M. Brubaker, S. LaFee. Hot Cars Can Hit Life‑Threatening Levels in Approximately One Hour / UC San Diego Health up to 70 °C. A monstrous inferno in which people and pets should not be left in any case.
Also, not all things can be stored in the car interior. Here is a list of items that are better to take with you on a warm day.
Manufacturers recommend storing most drugs at a temperature of no more than 25 ° C, in a cool place protected from light. Heat can Why You Should Keep Medicines Out Of Summer Heat / NPR affect the chemical composition of drugs, and hence their effectiveness.
If you have to carry pills with you, then store them in a bag where they will be hidden from the sun and will not heat up as much as in the car.
Studies have shown Y.-Y. Fan, J.-L. Zheng, et al. Effects of storage temperature and duration on release of antimony and bisphenol A from polyethylene terephthalate drinking water bottles of China / Environmental Pollution that due to the heat, plastic releases bisphenol A more actively ‑ a substance that, presumably, can be toxic A. Konieczna, A. Rutkowska, D. Rachoń. Health risk of exposure to Bisphenol A (BPA) / Roczniki Państwowego Zakładu Higieny for humans and causes endocrine and metabolic disorders.
However, to conduct this experiment, the water was heated to 70 ° C for four weeks, and these conditions are still far from reality. But in any case, it is better not to take risks and take the bottle with you, especially if you plan to leave the car in the heat for a long time.
Moreover, bisphenol is not the only danger that is hidden in plastic containers. In direct sunlight, water and transparent plastic can work like a lens — and even cause Warning: Leaving bottled water in your car could start a fire / CBS News fire.
Phones, tablets, children's toys with batteries and so on. Heat has a negative effect F. Leng, C. M. Tan, M. Pecht. Effect of Temperature on the Aging rate of Li Ion Battery Operating above Room Temperature / Nature on lithium batteries, reducing their service life. Device manufacturers — for example, Apple — warn Maximizing Battery Life and Lifespan / Apple that temperatures above 35°C may damage the battery.
From the intense heat, it can curl up, change the structure and lose Is Your Sunscreen Unsafe? Here’s How To Tell / Refinery29 its effectiveness. However, this also applies to ordinary creams.
For example, beer produces in the heat 3‑Methyl‑2‑butene‑1‑thiol / PubChem 3‑methyl‑2‑butene‑thiol is a substance that gives the drink a disgusting sour‑bitter taste and aroma reminiscent of the stink of a skunk. The taste of wine also spoils How Much Heat Does It Take To Ruin Wine? Not Much / VinePair and becomes sharper and more unpleasant. It is not for nothing that it is stored in the dark and cool — at a temperature no higher than 20 ° C.
It starts to melt Heat resistant chocolate / PMCA at a temperature of 25 °C. As a result, from the tiles left in the heated car, you will only have a brown puddle.
At 40 °C they start At what temperature do Crayola Crayons melt? / Crayola soften, at 48 °C — melt to a liquid state. So if you don't want to wash the seats and mats, make sure that children don't throw crayons around the cabin.
Especially perishable: ready meals, dairy products, eggs, meat, fish, cream cakes and so on. They are not recommended How Temperatures Affect Food / FSIS store outside the refrigerator for longer than 2 hours, and if the temperature outside is above 32 °C, this time is reduced to 1 hour. After this period, it will no longer be safe to eat food: the heat perfectly helps to multiply bacteria and affects the structure and consistency of the dish.
They can explode This is why you should NEVER leave your lighter in the car on a hot day / The Sun and cause a fire. This mainly applies to gas lighters, but gasoline lighters are also not quite Can lighters explode in your car? Gympie resident finds out after 40‑degree day / ABC NEWS are safe. In any case, the fuel is packed in a tight box and can expand greatly in the heat.
By the way, for this reason it is generally better not to leave lighters in the sun — on the balcony, on the windowsill, on the terrace of a country house. There were cases when a forgotten lighter led to Lightel left in sun causes balcony fire / Southwark News to the fire.
Deodorants, air fresheners, throat sprays and so on. The same thing can happen to them as with a lighter. From heating, the air inside the can expands, it can explode and damage the interior. A similar story Heat Stirs Debate About Flat Tires / The New York Times Company with pneumatic tires — for example, for a bicycle. It is also better not to leave them in the car with the air conditioner turned off.
