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Soil and water being splashed by a raindrop. Petrichor (/ ˈ p ɛ t r ɪ k ɔːr / PET-ri-kor) [1] is the earthy scent produced when rain falls on dry soil.The word was coined by Richard Grenfell Thomas from Ancient Greek πέτρα (pétra) 'rock' or πέτρος (pétros) 'stone' and ἰχώρ (ikhṓr), the ethereal fluid that is the blood of the gods in Greek mythology.
[1] [2] These gases contribute to the formation of smog and acid rain, as well as affecting tropospheric ozone. NO x gases are usually produced from the reaction between nitrogen and oxygen during combustion of fuels, such as hydrocarbons, in air; especially at high temperatures, such as in car engines.
The name ozone derives from ozein (ὄζειν), the Greek neuter present participle for smell, [7] referring to ozone's distinctive smell. In appropriate contexts, ozone can be viewed as trioxidane with two hydrogen atoms removed, and as such, trioxidanylidene may be used as a systematic name, according to substitutive nomenclature. By default ...
Ozone cracking is a form of stress corrosion cracking where active chemical species attack products of a susceptible material. The rubber product must be under tension for crack growth to occur. Ozone cracking was once commonly seen in the sidewalls of tires , where it could expand to cause a dangerous blowout , but is now rare owing to the use ...
A feasibility study of the ozone formed from the oxidation of nitrogen dioxide in ambient air reported by the WHO suggested that daily deaths of 1 to 2% is attributed to exposure to ozone concentration above 47.3 ppb and exposure above 75.7 ppb is attributed to 3 to 5% increase in daily mortality. A level of 114 ppb was attributed to 5 to 9% ...
Plug-in hybrids and electric cars run off lithium-ion batteries and rare-earth element electric motors.Electric vehicles use much more lithium carbonate equivalent in their batteries compared to the 7g (0.25 oz) for a smartphone or the 30 g (1.1 oz) used by tablets or computers.
Wild videos showed the unoccupied Infiniti QX56 exploding into bright orange flames while parked on 133 Street in South Ozone Park around 6:45 a.m.. There were several lithium batteries inside the ...
The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odor. [2] The word was then intended to refer to what was sometimes known as pea soup fog , a familiar and serious problem in London from the 19th century to the mid-20th century, where it was ...