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Most of the victims died from inhaling poisonous gases, including carbon monoxide. After the fire, the technical institution INTI found that the level of toxicity due to the materials and volume of the building was 225 ppm of cyanide in the air. A lethal dose for rats is between 150 ppm and 220 ppm, meaning the air in the building was highly toxic.
The human health effects of poor air quality are far reaching, but principally affect the body's respiratory system and the cardiovascular system. [9] [10] Individual reactions to air pollutants depend on the type of pollutant a person is exposed to, [11] [12] the degree of exposure, and the individual's health status and genetics. [13]
About 40% of human-caused emissions are from agriculture, [11] [12] as nitrogen fertilisers are digested into nitrous oxide by soil micro-organisms. [13] As the third most important greenhouse gas, nitrous oxide substantially contributes to global warming. [14] [15] Reduction of emissions is an important goal in the politics of climate change. [16]
The report comes as the Biden administration has taken steps to lessen people’s exposure to the gas. Earlier this year, EPA announced plans to limit the use of the chemical.
Carbon monoxide poisoning is the most common type of fatal air poisoning in many countries. [9] [8] [10] Carbon monoxide has important biological roles across phylogenetic kingdoms. It is produced by many organisms, including humans.
Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen (O 2) at increased partial pressures.Severe cases can result in cell damage and death, with effects most often seen in the central nervous system, lungs, and eyes.
A 37-year-old acid attack victim from Tabriz, Iran. An acid attack, [1] also called acid throwing, vitriol attack, or vitriolage, is a form of violent assault [2] [3] [4] involving the act of throwing acid or a similarly corrosive substance onto the body of another "with the intention to disfigure, maim, torture, or kill". [5]
Overall, air pollution causes the deaths of around ca. 7 million people worldwide each year, and is the world's largest single environmental health risk, according to the WHO (2012) and the IEA (2016). [33] [34] [35]