Human-activities on land are the most common causes of pollution in oceans, rivers, lakes, and other waterways. Over time this land becomes barren, resulting in soil erosion and desertification. When trees are cut down for developments the land below is no longer protected from the sun. Some of the largest landfills in the world stretch hundreds of acres and store waste that can take centuries to fully decompose.ĭeforestation is also a form of land pollution. Humans produce huge volumes of solid waste every year, but much of this waste is landfilled or disposed of at open dumps, which inevitably leaks into the environment. There are many causes of land pollution, including agricultural fertilizers and pesticides use, mining, and landfill sites. Land pollution refers to the deterioration of the earth's surfaces through direct or indirect human activities. The World Health Organization advises that annual mean PM2.5 concentrations should not exceed 10 µg/m3, but PM2.5 concentrations in countries around the world are considerably higher, especially in developing regions. PM2.5 refers to atmospheric particulate matter that has a diameter of fewer than 2.5 micrometers. Some of main sources of air pollutants are transportation, industrial processes, and domestic combustion, which emit large volumes of harmful pollutants such as nitrogen oxides, lead, sulfur oxides, and particulate matter. Globally, it is estimated that there are some seven million deaths related to air pollution each year. ![]() ![]() ![]() Air pollution is not only devastating to the environment but also human health. Air pollution is one of the most important environmental issues facing the planet today.
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