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Name Location Dependent population Description Sources of pollution Impact Bharalu River: Assam, India: One of the most polluted rivers in the state of Assam. [19] The biochemical oxygen demand of the river is 52 mg/L in compared to the permissible limit set by the National River Conservation Directorate (NRCD) at 3 mg/L. [20]
In many areas of the world, groundwater pollution poses a hazard to the wellbeing of people and ecosystems. One-quarter of the world's population depends on groundwater for drinking, yet concentrated recharging is known to carry short-lived contaminants into carbonate aquifers and jeopardize the purity of those waters. [51]
In the majority of the developing world, most of the collected wastewater is returned to surface waters directly without treatment, reducing the water's quality. [29] In China, only 38% of China's urban wastewater is treated, and although 91% of China's industrial waste water is treated, it still releases extensive toxins into the water supply ...
This list of global issues presents problems or phenomena affecting people around the world, including but not limited to widespread social issues, economic issues, and environmental issues. Organizations that maintain or have published an official list of global issues include the United Nations, and the World Economic Forum.
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Environmental issues are disruptions in the usual function of ecosystems. [1] Further, these issues can be caused by humans ( human impact on the environment ) [ 2 ] or they can be natural. These issues are considered serious when the ecosystem cannot recover in the present situation, and catastrophic if the ecosystem is projected to certainly ...
About half of the world's population currently experience severe water scarcity for at least some part of the year. [38] Half a billion people in the world face severe water scarcity all year round. [5] Half of the world's largest cities experience water scarcity. [12] Almost two billion people do not currently have access to clean drinking water.
In a federal complaint Tuesday, the NAACP said Mississippi officials “all but assured” a drinking water calamity in Jackson by depriving the state’s majority-Black capital city of badly ...