Very dirty and dangerous to live in it the city - Chernobyl, where the most common disease among children - a cancer of the thyroid gland. Environment, resulting in the worst nuclear disaster in the history of the planet was contaminated with uranium, plutonium, strontium, heavy metals, radioactive iodine. In second place as a Russian city - Dzerzhinsk, which during the Cold War produced sarin and mustard gas. Third place goes to town Haina (Dominican Republic), the air contains unacceptable amount of lead, which is a source of indoor plant for production of automotive batteries. This is a very densely populated area in which the most common disease - lead poisoning, whose content in the blood of the population is many times the norm. The ten most polluted cities in the world also includes the Zambian city of Kabwe, La Oroya (Peru), Linfyn (China), Maili-Sai (Kyrgyzstan), the Indian town of Ranipet, Russia - Norilsk Ore Dock, Dalnegorsk. In Norilsk winter snow falls black, the cause of which is a huge amount of sulfur and metals in the air. Life expectancy of factory workers for ten years less than the average for Russia.
One of the most polluted cities in the world recognized as Beijing, in an atmosphere which had the highest concentration of nitrogen dioxide and other harmful substances. The main reason - a large number of cars on city streets, as well as the release of chemicals at the plants of neighboring Hebei and Henan. This is a cause very high mortality pekintsev. In two other Chinese cities - Tianjin Linfyn and content in the air of sulfur dioxide and other particles are several times higher than permissible limits. In these cities there are coal mines.
Source of air pollution one of the dirtiest cities in the world - Peru La Oroya are the toxic emissions of the local plant. The air contained in unacceptable concentrations of lead, copper, and zinc. There are frequent acid rains, because of which in the vicinity of the city destroyed all vegetation. Cleaning work at the plant are not held at all. In the Zambian city of Kabwe (fourth of the dirtiest cities in the world), has rich deposits of lead. As a result of development of these deposits, ongoing since 1902, the level of air pollution with heavy metals, mainly lead and cadmium exceed allowable standards four times.
Another two of the dirtiest cities in the world are in India - a city Sukinda and Vapi. In Sukinde source of air pollution - mine, chrome ore, chromium compounds poison the air, and in Vapi industrial plants emit into the air chemical compounds and heavy metals, resulting in a poisoned 71 thousand people.
The list of most polluted cities in the world came as Azerbaijan, Sumgait air is poisoned by wastes of organic chemistry and heavy metals, and even mercury. According to the results of research conducted by the American Foundation for Blacksmith Institute, Russia leads to the most polluted localities of the world: in the list of the 35 localities 8 are placed on Russian territory. In second place, India (The list includes six Indian cities), followed by the Philippines, the United States, China and Romania.
The experts of the American Fund amounted to a list of 35 cities, of which selected the ten most polluted. The main criteria for getting into top10 become finicky population size, the danger of poisonous substances, the impact on the child's body and its development, etc. According to experts, the main source of pollution, toxic life of 10 million people living in the ten most polluted cities are heavy metals.
Dirtiest city in the world
| № | City | Country | Risk group, thousands of people. | Type of pollutants |
| 1 | Chernobyl | Ukraine | 5 500 | Uranium, plutonium, radioactive iodine, cesium 137, strontium and other metals |
| 2 | Dzerzhinsk | Russia | 300 | Chemicals and toxic byproducts from the production of cold-war era chemical agents, including sarin, lewisite, mustard gas, hydrogen cyanide, dioxins and other persistent organic chemicals |
| 3 | Hein | Dominican Republic | 85 | Lead |
| 4 | Kabwe | Zambia | 250 | Lead and cadmium |
| 5 | Oroya | Peru | 35 | Lead, copper, zinc, and sulfur dioxide |
| 6 | Linfyn | China | 200 | Ash particles in the air, carbon monoxide, nitrogen okisid, PM-25, PM-10, sulfur dioxide, arsenic and lead |
| 7 | Maili-Sai | Kyrgyzstan | 23 | Radioactive uranium mine tailings, heavy metals and cyanides |
| 8 | Norilsk | Russia | 134 | Air pollution - particulates including Strontium 90, cesium 137, sulfur dioxide, heavy metals (nickel, copper, cobalt, lead, selenium), nitrogen and carbon monoxide, phenols, hydrogen sulfide |
| 9 | Ranipet | India | 3 500 | Leather wastes containing hexavalent chromium |
| 10 | Dalnaia Pristani, Dalnegorsk | Russia | 90 | Lead, cadmium, mercury and antimony |

