Many of the chemical reactions that take place in the environment are caused by humans that cause environmental pollution, whether air or water pollution, but most of them happen when air is polluted, including that air pollution is mostly gases that result from fuel combustion.<br />Environmental pollution began since man burned coal and wood, and although the chemistry of gases was not known since ancient times, the British Parliament in 1293 AD approved the prohibition of burning coal in the city of London, as the smoke resulting from incomplete combustion is a companion It has chemical gases.<br />As there are many chemical pollutants to the environment, such as sulfur oxides, carbon oxide, hydrogen sulfide and hydrogen fluoride, as well as heavy metals, hydrocarbons and pesticides.<br />As each of them pollutes the environment differently from the other, it also has many damages to public health, and there are many accidents that occurred due to air pollution or the presence of a percentage of incomplete combustion gases, in the exhausts resulting from burning operations.<br />There are accidents caused by chemical reactions, the most important of which are<br /> In 1950 in Mexico, pollution occurred through smog, due to the spread of hydrogen sulfide gas for an hour in the air, which killed 22 people, and also 320 cases were affected by the gas, who lost the property of hearing.<br />It is also the smog that may occur with the presence of nitrogen dioxide in the air, because it helps to form smog, which is like other pollutants, such as sulfur oxide, ozone or hydrocarbons that result from incomplete combustion of fuel.<br />As for the sources of environmental pollution that result from chemical reactions, burning fuel is one of the things that cause air pollution, as the air contains 99 percent of nitrogen, water vapor and oxygen with some inert gases.<br />Therefore, the air pollution by burning fuel, and when the combustion is incomplete, it produces black smoke, which has millions of small particles that pollute the air after its extinguishment.<br />These air pollutants are also produced from all types of industrial mobiles such as coal generation plants, home heating systems, and oil movement plants, which have great harm to the environment and human health.<br />Also, car smoke or secondhand smoke that causes the release of nitrogen dioxide, carbon monoxide and sulfur oxides into the air, and through these gases that originate from fossil fuels, such as fuel oil, gasoline or natural gas, that are dealt with and displayed in generating stations energy, and also in machinery such as cars and other sources.<br />As these gases increase chemical reactions in the atmosphere and cause acid rain and smog. <br />Ozone is also one of the components of smog that pollutes the air, which is also formed due to the complex chemical reactions, between many of the organic compounds in it.<br />And nitrogen dioxide and air pollution can occur through secondhand smoke, which is the source of humans in all countries of the world.<br />At the end of our article on research on the effects of chemical reactions on the environment, we affirm that chemical reactions played a major role in the deterioration and suffocation of the environment.<br />As well as many environmental phenomena, and the spread of epidemics that appear on a large scale to infect humanity, environmental pollution began in the hands of humans and is still continuing as well, which leaves many negative consequences on the environment, life, man and his health.<br /><br /><br /><br />